Q: What are the prime factors of the number 551,214,528?

 A: 2, 3, 17, 97, 1741

Why are those the prime factors of the number 551,214,528?

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 551,214,528

551,214,528
Factor Arrows
2275,607,264
Factor Arrows
2137,803,632
Factor Arrows
268,901,816
Factor Arrows
234,450,908
Factor Arrows
217,225,454
Factor Arrows
28,612,727
Factor Arrows
32,870,909
Factor Arrows
17168,877
Factor Arrows
971,741

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, 97, 1741

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 3 x 17 x 97 x 1,741 = 551,214,528

This can also be written as 26 x 31 x 171 x 971 x 1,7411 = 551,214,528

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


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