Q: What are the prime factors of the number 36,311,625?

 A: 3, 5, 7, 29, 53

Why are those the prime factors of the number 36,311,625?

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 36,311,625

36,311,625
Factor Arrows
312,103,875
Factor Arrows
34,034,625
Factor Arrows
31,344,875
Factor Arrows
5268,975
Factor Arrows
553,795
Factor Arrows
510,759
Factor Arrows
71,537
Factor Arrows
2953

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:

3, 5, 7, 29, 53

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 5 x 7 x 29 x 53 = 36,311,625

This can also be written as 33 x 53 x 71 x 291 x 531 = 36,311,625

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


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