Q: What are the prime factors of the number 526,215,620?

 A: 2, 5, 7, 17, 23, 9613

Why are those the prime factors of the number 526,215,620?

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 526,215,620

526,215,620
Factor Arrows
2263,107,810
Factor Arrows
2131,553,905
Factor Arrows
526,310,781
Factor Arrows
73,758,683
Factor Arrows
17221,099
Factor Arrows
239,613

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, 5, 7, 17, 23, 9613

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 17 x 23 x 9,613 = 526,215,620

This can also be written as 22 x 51 x 71 x 171 x 231 x 9,6131 = 526,215,620

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


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