Q: What are the prime factors of the number 920,328?

 A: 2, 3, 31, 1237

Why are those the prime factors of the number 920,328?

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 920,328

920,328
Factor Arrows
2460,164
Factor Arrows
2230,082
Factor Arrows
2115,041
Factor Arrows
338,347
Factor Arrows
311,237

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, 31, 1237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 31 x 1,237 = 920,328

This can also be written as 23 x 31 x 311 x 1,2371 = 920,328

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


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