1001 = 7 x 11 x 13
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All numbers except primes themselves can be written as a multiple of two or more primes. So you just need to try dividing the number by prime numbers. Trying 13 gives 1001 = 13*77 = 13*7*11. 13, 7 and 11 are all prime numbers, so you know you have found the unique prime factorization of 1001.
Prime factorization of 90 = 2x3x3x5
Prime factorization for 128 is 27
The prime factorization of 122 is: 2 × 61 The prime factorization of 35 is: 5 × 7 The prime factorization of 120 is: 2 × 2 × 2 × 3 × 5 The prime factorization of 15 is: 3 × 5
Prime Factorizaton of 51The prime factorization of 51 is:3 X 17Both numbers are prime, so 3 X 17 is the prime factorization of 51.