Q: What are the prime factors of the number 514,460,640?

 A: 2, 3, 5, 79, 13567

Why are those the prime factors of the number 514,460,640?

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 514,460,640

514,460,640
Factor Arrows
2257,230,320
Factor Arrows
2128,615,160
Factor Arrows
264,307,580
Factor Arrows
232,153,790
Factor Arrows
216,076,895
Factor Arrows
35,358,965
Factor Arrows
51,071,793
Factor Arrows
7913,567

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, 79, 13567

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 79 x 13,567 = 514,460,640

This can also be written as 25 x 31 x 51 x 791 x 13,5671 = 514,460,640

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


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