18 = 2*3*3 21 = 3*7
18 = 21 x 32
18 = 21 x 32
The prime factorization for 21 is: 3x73 x 7 = 21
18 = 21 x 32
18 = 21 x 32
3 x 7 = 21, since both factors are prime, that is the prime factorization of 21.
The prime factorization of 18 is: 2 × 3 × 3
The prime factorization of 21 is 3 x 7.
Do you mean, "What is the prime factorization of 21?"
The prime factorization for 21 is 3x7.
The factors of 18 are: 1 2 3 6 9 18 The prime factors are: 2 x 3 x 3 and The factors of 21 are: 1 3 7 21 The prime factors are: 3 x 7