Q: What are the prime factors of the number 306,688?

 A: 2, 599

Why are those the prime factors of the number 306,688?

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 306,688

306,688
Factor Arrows
2153,344
Factor Arrows
276,672
Factor Arrows
238,336
Factor Arrows
219,168
Factor Arrows
29,584
Factor Arrows
24,792
Factor Arrows
22,396
Factor Arrows
21,198
Factor Arrows
2599

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, 599

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 599 = 306,688

This can also be written as 29 x 5991 = 306,688

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


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