Q: What are the prime factors of the number 157,488?

 A: 2, 3, 17, 193

Why are those the prime factors of the number 157,488?

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 157,488

157,488
Factor Arrows
278,744
Factor Arrows
239,372
Factor Arrows
219,686
Factor Arrows
29,843
Factor Arrows
33,281
Factor Arrows
17193

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, 3, 17, 193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 193 = 157,488

This can also be written as 24 x 31 x 171 x 1931 = 157,488

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


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