Q: What are the prime factors of the number 90,748?

 A: 2, 7, 463

Why are those the prime factors of the number 90,748?

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 90,748

90,748
Factor Arrows
245,374
Factor Arrows
222,687
Factor Arrows
73,241
Factor Arrows
7463

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, 7, 463

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 463 = 90,748

This can also be written as 22 x 72 x 4631 = 90,748

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


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