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# What is the least common multiple of 8 7 and 4?

Updated: 12/12/2022

Wiki User

8y ago

The least common multiple of 7, 4, and 8 is 56.

4 is a factor of 8, so LCM of 4 & 8 = 8. 7 & 8 only have the common factor of 1,

so the LCM of 7 & 8 = 7 * 8 = 56.

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BY PRIMES (recommended)

4 = 2 x 2

7 = 1 x 7

8 = 2 x 2 x 2

Highest prime exponentials are (2 x 2 x 2) and (7). 8 x 7 = 56

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7,14,21,28,35,42,49,56,63,70,77,84, ...are multiples of 7

8,16,24,32,40,48,56,64,72,80,88,96,.... are multiples of 8

4,8,12,16,20,24,28,32,36,40,44,48,52,56,60....are multiples of 4

The answer is: 56 as you can see

Wiki User

6y ago

Wiki User

6y ago

The LCM of the three numbers is 56

Wiki User

8y ago

56

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