72 is divisible by 6. (72 / 6 = 12)
Hence 6 is a composite number of 72.
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The composite factors of 72 are 4, 6, 8, 9, 12, 18, 24, 36, 72
Ok, so "72" is a composite number, because it has factory. See, the factors of "72" are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and then of course itself: 72. A prime number's factors are only 1 and itself, so for example 7. A factor is any whole number that, when multiplied by any one other whole number, is that number that the original number was and is a factor of. Hope this helps!
72
the factors of 72 are : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. Thus, 72 is a composite number. prime factorization of 72: 2 x 2 x 2 x 3 x 3
24, 51 and 72 are composite numbers 71 is a prime number.