Q: What are the prime factors of the number 30,813,375?

 A: 3, 5, 127, 647

Why are those the prime factors of the number 30,813,375?

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 30,813,375

30,813,375
Factor Arrows
310,271,125
Factor Arrows
52,054,225
Factor Arrows
5410,845
Factor Arrows
582,169
Factor Arrows
127647

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, 127, 647

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 127 x 647 = 30,813,375

This can also be written as 31 x 53 x 1271 x 6471 = 30,813,375

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


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