Q: What are the prime factors of the number 304,371,648?

 A: 2, 3, 7, 25163

Why are those the prime factors of the number 304,371,648?

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 304,371,648

304,371,648
Factor Arrows
2152,185,824
Factor Arrows
276,092,912
Factor Arrows
238,046,456
Factor Arrows
219,023,228
Factor Arrows
29,511,614
Factor Arrows
24,755,807
Factor Arrows
31,585,269
Factor Arrows
3528,423
Factor Arrows
3176,141
Factor Arrows
725,163

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, 3, 7, 25163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 25,163 = 304,371,648

This can also be written as 26 x 33 x 71 x 25,1631 = 304,371,648

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


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