Q: What are the prime factors of the number 611,332,315?

 A: 5, 11, 19, 37, 97, 163

Why are those the prime factors of the number 611,332,315?

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 611,332,315

611,332,315
Factor Arrows
5122,266,463
Factor Arrows
1111,115,133
Factor Arrows
19585,007
Factor Arrows
3715,811
Factor Arrows
97163

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:

5, 11, 19, 37, 97, 163

We can check our work by multiplying all of the prime factors together: 5 x 11 x 19 x 37 x 97 x 163 = 611,332,315

This can also be written as 51 x 111 x 191 x 371 x 971 x 1631 = 611,332,315

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


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