Q: What are the prime factors of the number 313,100,018?

 A: 2, 7, 11, 103, 19739

Why are those the prime factors of the number 313,100,018?

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 313,100,018

313,100,018
Factor Arrows
2156,550,009
Factor Arrows
722,364,287
Factor Arrows
112,033,117
Factor Arrows
10319,739

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, 7, 11, 103, 19739

We can check our work by multiplying all of the prime factors together: 2 x 7 x 11 x 103 x 19,739 = 313,100,018

This can also be written as 21 x 71 x 111 x 1031 x 19,7391 = 313,100,018

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


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