Q: What are the prime factors of the number 513,644,560?

 A: 2, 5, 11, 13, 59, 761

Why are those the prime factors of the number 513,644,560?

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 513,644,560

513,644,560
Factor Arrows
2256,822,280
Factor Arrows
2128,411,140
Factor Arrows
264,205,570
Factor Arrows
232,102,785
Factor Arrows
56,420,557
Factor Arrows
11583,687
Factor Arrows
1344,899
Factor Arrows
59761

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, 13, 59, 761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 13 x 59 x 761 = 513,644,560

This can also be written as 24 x 51 x 111 x 131 x 591 x 7611 = 513,644,560

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


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