Q: What are the prime factors of the number 452,638,320?

 A: 2, 3, 5, 1885993

Why are those the prime factors of the number 452,638,320?

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 452,638,320

452,638,320
Factor Arrows
2226,319,160
Factor Arrows
2113,159,580
Factor Arrows
256,579,790
Factor Arrows
228,289,895
Factor Arrows
39,429,965
Factor Arrows
51,885,993

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, 3, 5, 1885993

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 1,885,993 = 452,638,320

This can also be written as 24 x 31 x 51 x 1,885,9931 = 452,638,320

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


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