Q: What are the prime factors of the number 85,730,528?

 A: 2, 13, 206083

Why are those the prime factors of the number 85,730,528?

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 85,730,528

85,730,528
Factor Arrows
242,865,264
Factor Arrows
221,432,632
Factor Arrows
210,716,316
Factor Arrows
25,358,158
Factor Arrows
22,679,079
Factor Arrows
13206,083

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, 13, 206083

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 206,083 = 85,730,528

This can also be written as 25 x 131 x 206,0831 = 85,730,528

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


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