Q: What are the prime factors of the number 45,125,500?

 A: 2, 5, 7, 12893

Why are those the prime factors of the number 45,125,500?

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 45,125,500

45,125,500
Factor Arrows
222,562,750
Factor Arrows
211,281,375
Factor Arrows
52,256,275
Factor Arrows
5451,255
Factor Arrows
590,251
Factor Arrows
712,893

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, 12893

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 7 x 12,893 = 45,125,500

This can also be written as 22 x 53 x 71 x 12,8931 = 45,125,500

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


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