onlineintegertools logo

Running product finder

World's simplest integer tool

This online utility calculates the running product of several integers and displays the step-by-step multiplication process in the output. You can load the input integer data in any format and quickly adjust the delimiter character in the options. You can also use the skip-zero option to avoid the product turning into zero if any of the integers in the data is zero. Created by math nerds from team Browserling.
love fractals? check out our fracal tools!
We also have Online Fractal Tools — utilities for doing fractaly things. Check it out!
Integer Separator
Set the delimiter character to match the delimiter in the input integer list.
Zero Product
Skip all zero integers in the sequence to avoid the results from becoming zero.
Product Index
Add an ordinal before each cumulative integer.
Running product finder tool What is a running product finder?
With this browser-based program, you can find the running product (also known as the cumulative product) of multiple integer values. By default, the program accepts one integer per line in the input area, but if the integers come in a different format, you can change the integer separator character in the options. For example, if the input is comma-separated "10, 20, 30", then you can enter the comma "," in this option, or if the input is semicolon-separated "10; 20; 30", then you can enter the semicolon ";". The running product differs from the regular integer product in that it accumulates the intermediate results of the multiplication at every step of the computation and displays these intermediate partial products on the screen. For example, the regular product of integers 2, 4, 5, 6 is a single value and looks like this: 2×4×5×6 = 240 but the running product has four values: 2, 8, 40, 240. This is because the sequence starts with the integer 2, then it's multiplied by the second integer 2×4 = 8, then by the third 2×4×5 = 40, and then by the fourth 2×4×5×6 = 240. The integers 2, 8, 40, and 240 are cumulative (or intermediate) values of the computation. As you can see, the next integer is always multiplied by all the previous integers. If at any stage of the computation the value 0 is encountered, then all the following products (and the entire product) turns into 0. To prevent this zero result, use the "Avoid Zero Result" option that will skip all 0's in the input. You can also add position numbers of cumulative products by enabling the "Print Product Counter" option. Integerabulous!
Running product finder examples Click to use
Increasing Running Product
This example calculates the running product of the first ten positive even integers. As there are no negative integers or zero values in the input, the partial products increase with each step. All partial results are displayed on individual lines and the last value is the total product of the entire multiplication.
2 4 6 8 10 12 14 16 18 20
2 8 48 384 3840 46080 645120 10321920 185794560 3715891200
Required options
These options will be used automatically if you select this example.
Set the delimiter character to match the delimiter in the input integer list.
Add an ordinal before each cumulative integer.
Avoid Zeros
In this example, there are unwanted zero values among the integers. If we carried out the multiplication, then at the third integer it would turn zero and never change. To avoid that, we enable the "Avoid Zero Product" mode. Now all zeros are skipped and only non-zero values are used in the computation. We also insert the ";" symbol in the separator option because the input integers use the semicolon character as the delimiter character.
7; -4; 0; -3; -9; 5; 6; -4; 8; -4; 10; -1
7 -28 -28 84 -756 -3780 -22680 90720 725760 -2903040 -29030400 29030400
Required options
These options will be used automatically if you select this example.
Set the delimiter character to match the delimiter in the input integer list.
Skip all zero integers in the sequence to avoid the results from becoming zero.
Add an ordinal before each cumulative integer.
Weekly Squat Program
In this example, we decided to create a weekly at-home workout program for squats. As we're just starting, we'll do just two squats on the first day and then double the number of squats every day. With the running product algorithm, we can examine the progress of training day after day. We can quickly see the exact number of squats we'll do every day. It turns out by the seventh day, we'll be doing 128 squats. Ouch!
2 2 2 2 2 2 2
1: 2 2: 4 3: 8 4: 16 5: 32 6: 64 7: 128
Required options
These options will be used automatically if you select this example.
Set the delimiter character to match the delimiter in the input integer list.
Skip all zero integers in the sequence to avoid the results from becoming zero.
Add an ordinal before each cumulative integer.
Pro tips Master online integer tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlineintegertools.com/find-running-product?input=2%0A4%0A6%0A8%0A10%0A12%0A14%0A16%0A18%0A20&input-separator=%5Cn&print-counter=false
All integer tools
Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
Quickly rewrite integer digits using pretty Unicode glyphs.
Quickly generate random two-dimensional integer points.
Quickly generate random three-dimensional integer points.
Quickly print a list of integers that are palindromes.
Quickly convert the given integer to a palindromic integer.
Quickly find all integers in the given text or string.
Quickly make integer digits go in a triangle wave.
Quickly unleash the destructive force of Zalgo on integers.
Quickly find two or more integers that add up to the given integer.
Quickly find several integers that multiply up to the given integer.
Quickly randomize the given sequence of integers.
Quickly mix the order of digits in an integer.
Quickly put integers in increasing or decreasing order.
Quickly sort the individual digits of an integer.
Quickly increase all integers by a certain amount.
Quickly increase individual digits by a certain amount.
Quickly decrease all integers by a certain amount.
Quickly decrease individual digits by a certain amount.
Quickly randomly select an integer from a list of integers.
Quickly create groups from the digits of an integer.
Quickly write integer digits backwards.
Quickly remove one or more digits from an integer.
Quickly replace one or more digits in an integer.
Quickly drop digits from an integer and make it shorter.
Quickly add the thousands separator to integers.
Quickly remove the thousands separator from integers.
Quickly find the largest integer in a list of integers.
Quickly find the smallest integer in a list of integers.
Quickly find the total sum of a bunch of integers.
Quickly find the sum of all the digits in an integer.
Quickly find the total product of a bunch of integers.
Quickly find the product of all the digits in an integer.
Quickly calculate the partial sum of a bunch of integers.
Quickly calculate the partial product of a bunch of integers.
Quickly flip the sign of one or more integers.
Quickly split an integer into chunks of a given length.
Quickly merge partial integers together to form a larger integer.
Quickly round integers up or down to the required precision.
Quickly convert integers to a downloadable picture.
Quickly generate a list of von Neumann ordinals.
Quickly generate a list of Zermelo ordinals.
Quickly generate an ordered sequence of integers.
Quickly generate an ordered list of even integers.
Quickly generate an ordered list of odd integers.
Quickly write an integer spelling in words.
Quickly convert spelled integers to regular integers with digits.
Quickly generate an array of integers for programming.
Quickly find the number of occurrences of digits in integers.
Coming soon These integer tools are on the way
Draw von Neumann Universe
Create a drawing that visualizes von Neumann hierarchy of sets.
Create Integer n-Tuples
Generate a list of tuples of integers with n elements.
Convert Integers to Unary Base
Quickly convert integers to base one.
Convert Unary Base to Integers
Quickly convert base one to integers.
Convert Integers to Binary Base
Quickly convert integers to base two.
Convert Binary Base to Integers
Quickly convert base two to integers.
Convert Integers to Octal Base
Quickly convert integers to base eight.
Convert Octal Base to Integers
Quickly convert base eight to integers.
Convert Integers to Hex Base
Quickly convert integers to base sixteen.
Convert Hex Base to Integers
Quickly convert base sixteen to integers.
Convert Integers to Base64
Quickly encode integers to base-64.
Convert Base64 to Integers
Quickly decode base-64 to integers.
Change Integer Base
Quickly convert integers to a custom base.
Convert Integers to HTML Entities
Quickly encode integers to HTML encoding.
Convert HTML Entities to Integers
Quickly decode HTML entities to integers.
Create Random Integers
Generate a list of random integers.
Check if an Integer is Symmetric
Check if the given integers are palindromes.
Generate an Integer Matrix
Create a matrix whose entries are all integers.
Generate an Integer Vector
Create a vector with integer coefficients.
Find the Average
Quickly calculate the average value of integers.
Find the Digit Average
Quickly calculate the average value of integer digits.
Clamp Integers
Limit integer values to a range.
Clamp Integer Digits
Limit integer digit values to a range.
Duplicate Integers
Create multiple copies of the input integers.
Rotate Integers
Rotate the digits of an integer to the left or right.
Shift Integer Digits
Move the digits of an integer to the left or right.
Subtract Integers
Quickly find the difference of a bunch of integers.
AND Integers
Quickly apply the bitwise AND operation to integers.
OR Integers
Quickly apply the bitwise OR operation to integers.
XOR Integers
Quickly apply the bitwise XOR operation to integers.
NOT Integers
Quickly apply the bitwise NOT operation to integers.
NAND Integers
Quickly apply the bitwise NAND operation to integers.
NOR Integers
Quickly apply the bitwise NOR operation to integers.
XNOR Integers
Quickly apply the bitwise NXOR operation to integers.
Convert an Integer to Ordinal
Add -st, -nd, -rd, -th suffixes to integers to make them ordinals.
Convert an Oridinal to Integer
Remove -st, -nd, -rd, -th suffixes from ordinals to make them ints.
Filter Integers
Find integers that match a filter (greater, less, equal).
Left-pad Integers
Add padding to integers on the left side.
Right-pad Integers
Add padding to integers on the right side.
Right-align Integers
Position all integers so that they align on the right.
Center Integers
Position all integers so that they align in the middle.
Take Absolute Value of Integers
Turn all integers into positive integers.
Make All Integers Negative
Turn all integers into negative integers.
Convert Integers to Fractions
Rewrite an integer in fractional form.
Convert Fractions to Integers
Extract the numerator and denominator from a fraction.
Find and Replace Integers
Search for all occurrences of an integer and replace it.
Generate Integers from Regex
Create integers that match the given regular expression.