Q: What are the prime factors of the number 305,021,724?

 A: 2, 3, 7, 3631211

Why are those the prime factors of the number 305,021,724?

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 305,021,724

305,021,724
Factor Arrows
2152,510,862
Factor Arrows
276,255,431
Factor Arrows
325,418,477
Factor Arrows
73,631,211

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, 7, 3631211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 3,631,211 = 305,021,724

This can also be written as 22 x 31 x 71 x 3,631,2111 = 305,021,724

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


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