Q: What are the prime factors of the number 85,536,064?

 A: 2, 53, 151, 167

Why are those the prime factors of the number 85,536,064?

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 85,536,064

85,536,064
Factor Arrows
242,768,032
Factor Arrows
221,384,016
Factor Arrows
210,692,008
Factor Arrows
25,346,004
Factor Arrows
22,673,002
Factor Arrows
21,336,501
Factor Arrows
5325,217
Factor Arrows
151167

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, 53, 151, 167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 53 x 151 x 167 = 85,536,064

This can also be written as 26 x 531 x 1511 x 1671 = 85,536,064

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


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