Q: What are the prime factors of the number 673,617,210?

 A: 2, 3, 5, 7, 83, 5521

Why are those the prime factors of the number 673,617,210?

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 673,617,210

673,617,210
Factor Arrows
2336,808,605
Factor Arrows
3112,269,535
Factor Arrows
522,453,907
Factor Arrows
73,207,701
Factor Arrows
7458,243
Factor Arrows
835,521

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, 7, 83, 5521

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 7 x 7 x 83 x 5,521 = 673,617,210

This can also be written as 21 x 31 x 51 x 72 x 831 x 5,5211 = 673,617,210

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


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