Q: What are the prime factors of the number 331,310,012?

 A: 2, 11, 41, 43, 4271

Why are those the prime factors of the number 331,310,012?

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 331,310,012

331,310,012
Factor Arrows
2165,655,006
Factor Arrows
282,827,503
Factor Arrows
117,529,773
Factor Arrows
41183,653
Factor Arrows
434,271

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, 11, 41, 43, 4271

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 41 x 43 x 4,271 = 331,310,012

This can also be written as 22 x 111 x 411 x 431 x 4,2711 = 331,310,012

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


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