Q: What are the prime factors of the number 157,750?

 A: 2, 5, 631

Why are those the prime factors of the number 157,750?

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 157,750

157,750
Factor Arrows
278,875
Factor Arrows
515,775
Factor Arrows
53,155
Factor Arrows
5631

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, 631

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 631 = 157,750

This can also be written as 21 x 53 x 6311 = 157,750

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


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