Q: What are the prime factors of the number 451,064,638?

 A: 2, 17, 23, 89, 6481

Why are those the prime factors of the number 451,064,638?

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 451,064,638

451,064,638
Factor Arrows
2225,532,319
Factor Arrows
1713,266,607
Factor Arrows
23576,809
Factor Arrows
896,481

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, 23, 89, 6481

We can check our work by multiplying all of the prime factors together: 2 x 17 x 23 x 89 x 6,481 = 451,064,638

This can also be written as 21 x 171 x 231 x 891 x 6,4811 = 451,064,638

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


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