Q: What are the prime factors of the number 457,371,670?

 A: 2, 5, 7, 307, 21283

Why are those the prime factors of the number 457,371,670?

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 457,371,670

457,371,670
Factor Arrows
2228,685,835
Factor Arrows
545,737,167
Factor Arrows
76,533,881
Factor Arrows
30721,283

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, 5, 7, 307, 21283

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 307 x 21,283 = 457,371,670

This can also be written as 21 x 51 x 71 x 3071 x 21,2831 = 457,371,670

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


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