63 = 3 x 3 x 7 or 32 x 7
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3*3*7=63
As a product of its prime factors: 3*3*7 = 63
It is 7 because the product of its prime factors are: 3*3*7 = 63
63 = 3 x 3 x 7
no if you multiply two primes for example 7x9=63 63 is not prime because 9 and 7 go into it