Q: What are the prime factors of the number 515,412,528?

 A: 2, 3, 17, 47, 89, 151

Why are those the prime factors of the number 515,412,528?

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 515,412,528

515,412,528
Factor Arrows
2257,706,264
Factor Arrows
2128,853,132
Factor Arrows
264,426,566
Factor Arrows
232,213,283
Factor Arrows
310,737,761
Factor Arrows
17631,633
Factor Arrows
4713,439
Factor Arrows
89151

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, 17, 47, 89, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 47 x 89 x 151 = 515,412,528

This can also be written as 24 x 31 x 171 x 471 x 891 x 1511 = 515,412,528

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


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