Q: What are the prime factors of the number 305,560,387?

 A: 11, 79, 227, 1549

Why are those the prime factors of the number 305,560,387?

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 305,560,387

305,560,387
Factor Arrows
1127,778,217
Factor Arrows
79351,623
Factor Arrows
2271,549

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:

11, 79, 227, 1549

We can check our work by multiplying all of the prime factors together: 11 x 79 x 227 x 1,549 = 305,560,387

This can also be written as 111 x 791 x 2271 x 1,5491 = 305,560,387

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


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