Q: What are the prime factors of the number 2,177,088?

 A: 2, 3, 17, 23, 29

Why are those the prime factors of the number 2,177,088?

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 2,177,088

2,177,088
Factor Arrows
21,088,544
Factor Arrows
2544,272
Factor Arrows
2272,136
Factor Arrows
2136,068
Factor Arrows
268,034
Factor Arrows
234,017
Factor Arrows
311,339
Factor Arrows
17667
Factor Arrows
2329

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, 17, 23, 29

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 17 x 23 x 29 = 2,177,088

This can also be written as 26 x 31 x 171 x 231 x 291 = 2,177,088

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


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