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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
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∙ 6y ago
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