Q: What are the prime factors of the number 526,640?

 A: 2, 5, 29, 227

Why are those the prime factors of the number 526,640?

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 526,640

526,640
Factor Arrows
2263,320
Factor Arrows
2131,660
Factor Arrows
265,830
Factor Arrows
232,915
Factor Arrows
56,583
Factor Arrows
29227

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, 5, 29, 227

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 29 x 227 = 526,640

This can also be written as 24 x 51 x 291 x 2271 = 526,640

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


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