Q: What are the prime factors of the number 240,313,344?

 A: 2, 3, 137, 571

Why are those the prime factors of the number 240,313,344?

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 240,313,344

240,313,344
Factor Arrows
2120,156,672
Factor Arrows
260,078,336
Factor Arrows
230,039,168
Factor Arrows
215,019,584
Factor Arrows
27,509,792
Factor Arrows
23,754,896
Factor Arrows
21,877,448
Factor Arrows
2938,724
Factor Arrows
2469,362
Factor Arrows
2234,681
Factor Arrows
378,227
Factor Arrows
137571

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, 137, 571

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 2 x 2 x 2 x 3 x 137 x 571 = 240,313,344

This can also be written as 210 x 31 x 1371 x 5711 = 240,313,344

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


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