Q: What are the prime factors of the number 307,426,080?

 A: 2, 3, 5, 13, 19, 2593

Why are those the prime factors of the number 307,426,080?

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 307,426,080

307,426,080
Factor Arrows
2153,713,040
Factor Arrows
276,856,520
Factor Arrows
238,428,260
Factor Arrows
219,214,130
Factor Arrows
29,607,065
Factor Arrows
33,202,355
Factor Arrows
5640,471
Factor Arrows
1349,267
Factor Arrows
192,593

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, 5, 13, 19, 2593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 13 x 19 x 2,593 = 307,426,080

This can also be written as 25 x 31 x 51 x 131 x 191 x 2,5931 = 307,426,080

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


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