Q: What are the prime factors of the number 304,310,745?

 A: 3, 5, 19, 157, 2267

Why are those the prime factors of the number 304,310,745?

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 304,310,745

304,310,745
Factor Arrows
3101,436,915
Factor Arrows
333,812,305
Factor Arrows
56,762,461
Factor Arrows
19355,919
Factor Arrows
1572,267

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:

3, 5, 19, 157, 2267

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 19 x 157 x 2,267 = 304,310,745

This can also be written as 32 x 51 x 191 x 1571 x 2,2671 = 304,310,745

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


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