Q: What are the prime factors of the number 308,177,415?

 A: 3, 5, 7, 13, 827

Why are those the prime factors of the number 308,177,415?

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 308,177,415

308,177,415
Factor Arrows
3102,725,805
Factor Arrows
334,241,935
Factor Arrows
56,848,387
Factor Arrows
7978,341
Factor Arrows
7139,763
Factor Arrows
1310,751
Factor Arrows
13827

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, 5, 7, 13, 827

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 7 x 13 x 13 x 827 = 308,177,415

This can also be written as 32 x 51 x 72 x 132 x 8271 = 308,177,415

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


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