Common Multiple Calculator

Your details

A positive whole number (1 to 1,000,000).
A positive whole number (1 to 1,000,000).
Leave blank to use only two numbers.
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How many common multiples to display after the LCM.
Least Common Multiple (LCM)
12

The smallest positive integer divisible by all entered numbers.

Greatest Common Factor (GCF)2
LCM x GCF24
Common multiples12, 24, 36, 48, 60, 72, 84, 96, 108, 120
Numbers used2
LCM12
GCF2

The least common multiple of 4, 6 is 12.

  • The LCM is 12. All of your numbers divide into 12 without a remainder.
  • The GCF is 2. Every number you entered is divisible by 2, which kept the LCM smaller than it would be for coprime numbers.
  • For two numbers, LCM x GCF always equals the product of the numbers: 12 x 2 = 24.
  • Every common multiple of your numbers is a multiple of the LCM. So the full list is 12, 24, 36, ... and so on infinitely.

Next stepUse the LCM to add or subtract fractions with different denominators: find the LCM of the denominators to get the least common denominator (LCD).

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