Q: What are the prime factors of the number 36,315,520?

 A: 2, 5, 179, 317

Why are those the prime factors of the number 36,315,520?

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 36,315,520

36,315,520
Factor Arrows
218,157,760
Factor Arrows
29,078,880
Factor Arrows
24,539,440
Factor Arrows
22,269,720
Factor Arrows
21,134,860
Factor Arrows
2567,430
Factor Arrows
2283,715
Factor Arrows
556,743
Factor Arrows
179317

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, 5, 179, 317

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 2 x 5 x 179 x 317 = 36,315,520

This can also be written as 27 x 51 x 1791 x 3171 = 36,315,520

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


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