Q: What are the prime factors of the number 45,730,328?

 A: 2, 7, 43, 2713

Why are those the prime factors of the number 45,730,328?

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 45,730,328

45,730,328
Factor Arrows
222,865,164
Factor Arrows
211,432,582
Factor Arrows
25,716,291
Factor Arrows
7816,613
Factor Arrows
7116,659
Factor Arrows
432,713

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, 7, 43, 2713

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 43 x 2,713 = 45,730,328

This can also be written as 23 x 72 x 431 x 2,7131 = 45,730,328

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


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