Q: What are the prime factors of the number 312,551,125?

 A: 5, 29, 151, 571

Why are those the prime factors of the number 312,551,125?

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 312,551,125

312,551,125
Factor Arrows
562,510,225
Factor Arrows
512,502,045
Factor Arrows
52,500,409
Factor Arrows
2986,221
Factor Arrows
151571

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:

5, 29, 151, 571

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 29 x 151 x 571 = 312,551,125

This can also be written as 53 x 291 x 1511 x 5711 = 312,551,125

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


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