Q: What are the prime factors of the number 560,120,805?

 A: 3, 5, 1583, 2621

Why are those the prime factors of the number 560,120,805?

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 560,120,805

560,120,805
Factor Arrows
3186,706,935
Factor Arrows
362,235,645
Factor Arrows
320,745,215
Factor Arrows
54,149,043
Factor Arrows
1,5832,621

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:

3, 5, 1583, 2621

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 1,583 x 2,621 = 560,120,805

This can also be written as 33 x 51 x 1,5831 x 2,6211 = 560,120,805

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


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