Q: What are the prime factors of the number 312,523,250?

 A: 2, 5, 13, 569

Why are those the prime factors of the number 312,523,250?

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 312,523,250

312,523,250
Factor Arrows
2156,261,625
Factor Arrows
531,252,325
Factor Arrows
56,250,465
Factor Arrows
51,250,093
Factor Arrows
1396,161
Factor Arrows
137,397
Factor Arrows
13569

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, 5, 13, 569

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 13 x 13 x 13 x 569 = 312,523,250

This can also be written as 21 x 53 x 133 x 5691 = 312,523,250

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


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