Q: What are the prime factors of the number 137,260,416?

 A: 2, 3, 271, 1319

Why are those the prime factors of the number 137,260,416?

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 137,260,416

137,260,416
Factor Arrows
268,630,208
Factor Arrows
234,315,104
Factor Arrows
217,157,552
Factor Arrows
28,578,776
Factor Arrows
24,289,388
Factor Arrows
22,144,694
Factor Arrows
21,072,347
Factor Arrows
3357,449
Factor Arrows
2711,319

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, 271, 1319

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 3 x 271 x 1,319 = 137,260,416

This can also be written as 27 x 31 x 2711 x 1,3191 = 137,260,416

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


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