Q: What are the prime factors of the number 312,121,296?

 A: 2, 3, 127, 5689

Why are those the prime factors of the number 312,121,296?

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 312,121,296

312,121,296
Factor Arrows
2156,060,648
Factor Arrows
278,030,324
Factor Arrows
239,015,162
Factor Arrows
219,507,581
Factor Arrows
36,502,527
Factor Arrows
32,167,509
Factor Arrows
3722,503
Factor Arrows
1275,689

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, 127, 5689

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 127 x 5,689 = 312,121,296

This can also be written as 24 x 33 x 1271 x 5,6891 = 312,121,296

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


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