Q: What are the prime factors of the number 318,696?

 A: 2, 3, 7, 271

Why are those the prime factors of the number 318,696?

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 318,696

318,696
Factor Arrows
2159,348
Factor Arrows
279,674
Factor Arrows
239,837
Factor Arrows
313,279
Factor Arrows
71,897
Factor Arrows
7271

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, 7, 271

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 7 x 271 = 318,696

This can also be written as 23 x 31 x 72 x 2711 = 318,696

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


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