Q: What are the prime factors of the number 307,756,560?

 A: 2, 3, 5, 23, 127, 439

Why are those the prime factors of the number 307,756,560?

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 307,756,560

307,756,560
Factor Arrows
2153,878,280
Factor Arrows
276,939,140
Factor Arrows
238,469,570
Factor Arrows
219,234,785
Factor Arrows
36,411,595
Factor Arrows
51,282,319
Factor Arrows
2355,753
Factor Arrows
127439

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, 23, 127, 439

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 23 x 127 x 439 = 307,756,560

This can also be written as 24 x 31 x 51 x 231 x 1271 x 4391 = 307,756,560

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


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