Q: What are the prime factors of the number 312,110,100?

 A: 2, 3, 5, 239, 1451

Why are those the prime factors of the number 312,110,100?

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 312,110,100

312,110,100
Factor Arrows
2156,055,050
Factor Arrows
278,027,525
Factor Arrows
326,009,175
Factor Arrows
38,669,725
Factor Arrows
51,733,945
Factor Arrows
5346,789
Factor Arrows
2391,451

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, 239, 1451

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 5 x 239 x 1,451 = 312,110,100

This can also be written as 22 x 32 x 52 x 2391 x 1,4511 = 312,110,100

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


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