Q: What are the prime factors of the number 615,405,376?

 A: 2, 9615709

Why are those the prime factors of the number 615,405,376?

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 615,405,376

615,405,376
Factor Arrows
2307,702,688
Factor Arrows
2153,851,344
Factor Arrows
276,925,672
Factor Arrows
238,462,836
Factor Arrows
219,231,418
Factor Arrows
29,615,709

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, 9615709

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 9,615,709 = 615,405,376

This can also be written as 26 x 9,615,7091 = 615,405,376

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


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