Q: What are the prime factors of the number 655,110?

 A: 2, 3, 5, 29, 251

Why are those the prime factors of the number 655,110?

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 655,110

655,110
Factor Arrows
2327,555
Factor Arrows
3109,185
Factor Arrows
336,395
Factor Arrows
57,279
Factor Arrows
29251

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, 5, 29, 251

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 29 x 251 = 655,110

This can also be written as 21 x 32 x 51 x 291 x 2511 = 655,110

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


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