Q: What are the prime factors of the number 306,382,980?

 A: 2, 3, 5, 19, 268757

Why are those the prime factors of the number 306,382,980?

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 306,382,980

306,382,980
Factor Arrows
2153,191,490
Factor Arrows
276,595,745
Factor Arrows
325,531,915
Factor Arrows
55,106,383
Factor Arrows
19268,757

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, 19, 268757

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 19 x 268,757 = 306,382,980

This can also be written as 22 x 31 x 51 x 191 x 268,7571 = 306,382,980

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


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