Q: What are the prime factors of the number 513,245,056?

 A: 2, 37, 307, 353

Why are those the prime factors of the number 513,245,056?

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 513,245,056

513,245,056
Factor Arrows
2256,622,528
Factor Arrows
2128,311,264
Factor Arrows
264,155,632
Factor Arrows
232,077,816
Factor Arrows
216,038,908
Factor Arrows
28,019,454
Factor Arrows
24,009,727
Factor Arrows
37108,371
Factor Arrows
307353

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, 37, 307, 353

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 37 x 307 x 353 = 513,245,056

This can also be written as 27 x 371 x 3071 x 3531 = 513,245,056

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


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