Q: What are the prime factors of the number 313,026,144?

 A: 2, 3, 41, 67, 1187

Why are those the prime factors of the number 313,026,144?

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 313,026,144

313,026,144
Factor Arrows
2156,513,072
Factor Arrows
278,256,536
Factor Arrows
239,128,268
Factor Arrows
219,564,134
Factor Arrows
29,782,067
Factor Arrows
33,260,689
Factor Arrows
4179,529
Factor Arrows
671,187

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, 41, 67, 1187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 41 x 67 x 1,187 = 313,026,144

This can also be written as 25 x 31 x 411 x 671 x 1,1871 = 313,026,144

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


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