Q: What are the prime factors of the number 305,862,525?

 A: 3, 5, 1117, 1217

Why are those the prime factors of the number 305,862,525?

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 305,862,525

305,862,525
Factor Arrows
3101,954,175
Factor Arrows
333,984,725
Factor Arrows
56,796,945
Factor Arrows
51,359,389
Factor Arrows
1,1171,217

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, 1117, 1217

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 1,117 x 1,217 = 305,862,525

This can also be written as 32 x 52 x 1,1171 x 1,2171 = 305,862,525

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


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