Q: What are the prime factors of the number 450,017,642?

 A: 2, 17, 89, 127, 1171

Why are those the prime factors of the number 450,017,642?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 450,017,642

450,017,642
Factor Arrows
2225,008,821
Factor Arrows
1713,235,813
Factor Arrows
89148,717
Factor Arrows
1271,171

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 17, 89, 127, 1171

We can check our work by multiplying all of the prime factors together: 2 x 17 x 89 x 127 x 1,171 = 450,017,642

This can also be written as 21 x 171 x 891 x 1271 x 1,1711 = 450,017,642

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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