Q: What are the prime factors of the number 312,272,739?

 A: 3, 419, 3067

Why are those the prime factors of the number 312,272,739?

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 312,272,739

312,272,739
Factor Arrows
3104,090,913
Factor Arrows
334,696,971
Factor Arrows
311,565,657
Factor Arrows
33,855,219
Factor Arrows
31,285,073
Factor Arrows
4193,067

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:

3, 419, 3067

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 419 x 3,067 = 312,272,739

This can also be written as 35 x 4191 x 3,0671 = 312,272,739

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


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