Q: What are the prime factors of the number 308,015,645?

 A: 5, 7, 541, 16267

Why are those the prime factors of the number 308,015,645?

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 308,015,645

308,015,645
Factor Arrows
561,603,129
Factor Arrows
78,800,447
Factor Arrows
54116,267

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:

5, 7, 541, 16267

We can check our work by multiplying all of the prime factors together: 5 x 7 x 541 x 16,267 = 308,015,645

This can also be written as 51 x 71 x 5411 x 16,2671 = 308,015,645

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


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