Q: What are the prime factors of the number 615,705,200?

 A: 2, 5, 11, 41, 3413

Why are those the prime factors of the number 615,705,200?

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 615,705,200

615,705,200
Factor Arrows
2307,852,600
Factor Arrows
2153,926,300
Factor Arrows
276,963,150
Factor Arrows
238,481,575
Factor Arrows
57,696,315
Factor Arrows
51,539,263
Factor Arrows
11139,933
Factor Arrows
413,413

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, 11, 41, 3413

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 11 x 41 x 3,413 = 615,705,200

This can also be written as 24 x 52 x 111 x 411 x 3,4131 = 615,705,200

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


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