Q: What are the prime factors of the number 362,472,640?

 A: 2, 5, 17, 23, 2897

Why are those the prime factors of the number 362,472,640?

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 362,472,640

362,472,640
Factor Arrows
2181,236,320
Factor Arrows
290,618,160
Factor Arrows
245,309,080
Factor Arrows
222,654,540
Factor Arrows
211,327,270
Factor Arrows
25,663,635
Factor Arrows
51,132,727
Factor Arrows
1766,631
Factor Arrows
232,897

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, 17, 23, 2897

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 17 x 23 x 2,897 = 362,472,640

This can also be written as 26 x 51 x 171 x 231 x 2,8971 = 362,472,640

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


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