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Anonymous
63 = 3 * 3 * 7
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63 = 3 x 3 x 7
The prime factorization of 63 is 3 x 3 x 7.
63 = 7*9= 7*3*3= 7* (3)^2
32 x 7 = 63
When all the factors are prime numbers, that's a prime factorization.