Q: What are the prime factors of the number 513,643,456?

 A: 2, 8025679

Why are those the prime factors of the number 513,643,456?

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 513,643,456

513,643,456
Factor Arrows
2256,821,728
Factor Arrows
2128,410,864
Factor Arrows
264,205,432
Factor Arrows
232,102,716
Factor Arrows
216,051,358
Factor Arrows
28,025,679

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, 8025679

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 8,025,679 = 513,643,456

This can also be written as 26 x 8,025,6791 = 513,643,456

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


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