Q: What are the prime factors of the number 698,688?

 A: 2, 3, 1213

Why are those the prime factors of the number 698,688?

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 698,688

698,688
Factor Arrows
2349,344
Factor Arrows
2174,672
Factor Arrows
287,336
Factor Arrows
243,668
Factor Arrows
221,834
Factor Arrows
210,917
Factor Arrows
33,639
Factor Arrows
31,213

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, 1213

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 3 x 3 x 1,213 = 698,688

This can also be written as 26 x 32 x 1,2131 = 698,688

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


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