Q: What are the prime factors of the number 307,160,370?

 A: 2, 3, 5, 11, 103421

Why are those the prime factors of the number 307,160,370?

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 307,160,370

307,160,370
Factor Arrows
2153,580,185
Factor Arrows
351,193,395
Factor Arrows
317,064,465
Factor Arrows
35,688,155
Factor Arrows
51,137,631
Factor Arrows
11103,421

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, 11, 103421

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 11 x 103,421 = 307,160,370

This can also be written as 21 x 33 x 51 x 111 x 103,4211 = 307,160,370

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


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