# Integer digit multiplicator

World's simplest integer tool
This browser-based tool multiplies all digits in an integer and prints their product in the output. You can choose between two multiplication modes – single-pass mode that simply multiplies all digits together or multi-pass mode that multiplies all digits together recursively until a single-digit root value is left. You can also skip zeros during the multiplication process to avoid the zero product. Created by math nerds from team Browserling.

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## What is a integer digit multiplicator?

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With this online utility, you can multiply all the digits of an integer and find their product. For example, if the input contains the integer 1237, then after multiplying its digits 1×2×3×8, the output 48 will be produced. The input may contain arbitrary large integers with any number of digits. If the "Repeated Digital Product" option is disabled (by default it's disabled), the program prints this one value and stops. If the "Repeated Digital Product" option is enabled, then the program restarts the algorithm and recursively applies it to the previous product. For example, 1×2×3×8 = 48, then 4×8 = 32, then 3×2 = 6. When a one-digit value is reached, the algorithm stops and displays all intermediate results on the screen. The single-digit integer resulting from repeated multiplications is called the repeated digital root. If there's at least one occurrence of a zero in integer's digits, the entire product becomes zero. If you use the "Skip Zeros" option, then it skips all zero factors and the result is non-zero. Integerabulous!

## Integer digit multiplicator examples

Click to useMultiply all Integer Digits

In this example, we calculate the digit product of several integers in parallel. Each input integer is on its own line and each result is also on its own line. If there's at least one zero in the integer, then the entire product is turned to zero (see the integer on line four). The signs of integers are preserved in the results (see integers on lines two and three).

32
+234
-666
888808
111111111
252525252525

6
+24
-216
0
1
1000000

**Required options**

Apply the multiplication algorithm
to the results iteratively to reach
a one-digit value.

Skip all zeros in an integer
to prevent the zero product.

Iterative Digit Multiplication

In this example, we have enabled the "Repeated Digital Product" option that iteratively calculates the multiplicative digit root for seven different integer values. The program automatically determines how many times to apply the multiplication function on the results to get a one-digit value as the final product.

1
12
123
1234
12345
123456
1234567

1
12 → 2
123 → 6
1234 → 24 → 8
12345 → 120 → 0
123456 → 720 → 0
1234567 → 5040 → 0

**Required options**

Apply the multiplication algorithm
to the results iteratively to reach
a one-digit value.

Skip all zeros in an integer
to prevent the zero product.

Skip Zero Digits

This example contains integers that each have one or more zero-digits. For such integers, the product of digits is always zero. To get a non-zero result, we use the skip zero digits option. It drops zeros from the input and the multiplication algorithm safely produces a non-zero result.

1024
60606
88908
4682068

8
216
4608
18432

**Required options**

Apply the multiplication algorithm
to the results iteratively to reach
a one-digit value.

Skip all zeros in an integer
to prevent the zero product.

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/multiply-integer-digits

__?input__=32%0A%2B234%0A-666%0A888808%0A111111111%0A252525252525&digital-root=false&skip-zeros=false
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Generate a list of tuples of integers with n elements.

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Quickly convert integers to base one.

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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.

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Quickly convert base eight to integers.

Convert Integers to Hex Base

Quickly convert integers to base sixteen.

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Quickly convert base sixteen to integers.

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Quickly encode integers to HTML encoding.

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Convert Integers to URL Encoding

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Convert URL Encoding to Integers

Quickly decode URL-encoded integers.

Convert Signed Integer to Unsigned

Quickly convert a signed integer to an unsigned integer.

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Quickly convert an unsigned integer to a signed integer.

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Generate a list of random integers.

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Quickly calculate the average value of integer digits.

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Quickly randomly select a digit from an integer.

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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

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Filter Integers

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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

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Print Increasing Integers

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Print Integer Information

Quickly find various information about the given integers.

Find Patterns in Integers

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Calculate Integer Entropy

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