Q: What are the prime factors of the number 615,114,720?

 A: 2, 3, 5, 11, 38833

Why are those the prime factors of the number 615,114,720?

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 615,114,720

615,114,720
Factor Arrows
2307,557,360
Factor Arrows
2153,778,680
Factor Arrows
276,889,340
Factor Arrows
238,444,670
Factor Arrows
219,222,335
Factor Arrows
36,407,445
Factor Arrows
32,135,815
Factor Arrows
5427,163
Factor Arrows
1138,833

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, 5, 11, 38833

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 11 x 38,833 = 615,114,720

This can also be written as 25 x 32 x 51 x 111 x 38,8331 = 615,114,720

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


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