Q: What are the prime factors of the number 85,302,228?

 A: 2, 3, 11, 53, 89, 137

Why are those the prime factors of the number 85,302,228?

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 85,302,228

85,302,228
Factor Arrows
242,651,114
Factor Arrows
221,325,557
Factor Arrows
37,108,519
Factor Arrows
11646,229
Factor Arrows
5312,193
Factor Arrows
89137

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, 11, 53, 89, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 53 x 89 x 137 = 85,302,228

This can also be written as 22 x 31 x 111 x 531 x 891 x 1371 = 85,302,228

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


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