Q: What are the prime factors of the number 85,175,622?

 A: 2, 3, 7, 269, 359

Why are those the prime factors of the number 85,175,622?

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 85,175,622

85,175,622
Factor Arrows
242,587,811
Factor Arrows
314,195,937
Factor Arrows
34,731,979
Factor Arrows
7675,997
Factor Arrows
796,571
Factor Arrows
269359

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, 7, 269, 359

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 269 x 359 = 85,175,622

This can also be written as 21 x 32 x 72 x 2691 x 3591 = 85,175,622

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


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