Q: What are the prime factors of the number 427,525?

 A: 5, 7, 349

Why are those the prime factors of the number 427,525?

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 427,525

427,525
Factor Arrows
585,505
Factor Arrows
517,101
Factor Arrows
72,443
Factor Arrows
7349

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:

5, 7, 349

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 7 x 349 = 427,525

This can also be written as 52 x 72 x 3491 = 427,525

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


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