Q: What are the prime factors of the number 565,121,460?

 A: 2, 3, 5, 461, 20431

Why are those the prime factors of the number 565,121,460?

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 565,121,460

565,121,460
Factor Arrows
2282,560,730
Factor Arrows
2141,280,365
Factor Arrows
347,093,455
Factor Arrows
59,418,691
Factor Arrows
46120,431

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, 461, 20431

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 461 x 20,431 = 565,121,460

This can also be written as 22 x 31 x 51 x 4611 x 20,4311 = 565,121,460

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


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