Q: What are the prime factors of the number 30,907,965?

 A: 3, 5, 11, 19, 9859

Why are those the prime factors of the number 30,907,965?

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 30,907,965

30,907,965
Factor Arrows
310,302,655
Factor Arrows
52,060,531
Factor Arrows
11187,321
Factor Arrows
199,859

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, 11, 19, 9859

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 19 x 9,859 = 30,907,965

This can also be written as 31 x 51 x 111 x 191 x 9,8591 = 30,907,965

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


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