Q: What are the prime factors of the number 220,688?

 A: 2, 13, 1061

Why are those the prime factors of the number 220,688?

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 220,688

220,688
Factor Arrows
2110,344
Factor Arrows
255,172
Factor Arrows
227,586
Factor Arrows
213,793
Factor Arrows
131,061

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, 13, 1061

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 1,061 = 220,688

This can also be written as 24 x 131 x 1,0611 = 220,688

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


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