2 x 2 x 2 x 2 = 16
3 x 3 x 7 = 63
3 x 5 x 5 = 75
No prime factors in common, the GCF is 1.
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2 x 2 x 3 = 12 2 x 2 x 2 x 2 = 16 2 x 2 = 4, the GCF
No, 16 is not prime. 2 x 2 x 2 x 2 is the prime factorization of 16.
2 x 2 x 2 x 2 = 16 2 x 2 x 5 = 20 2 x 2 = 4, the GCF
24
16 = 24 10 = 2 × 5