The prime factorization for 21 is: 3x7
3 x 7 = 21
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No. Prime factorization is the method of expressing a number as the product of prime numbers. So, Prime factorization of 42 = 2x3x7
14*21
The prime factorization of 21 is 3 x 7 = 21The prime factorization of 56 is 2 x 2 x 2 x 7 = 56The GCF of 21 and 56 is 7.
The primes factors are of 21 are 3 x 7
3 x 7 = 21