Q: What are the prime factors of the number 311,300,442?

 A: 2, 3, 29, 137, 1451

Why are those the prime factors of the number 311,300,442?

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 311,300,442

311,300,442
Factor Arrows
2155,650,221
Factor Arrows
351,883,407
Factor Arrows
317,294,469
Factor Arrows
35,764,823
Factor Arrows
29198,787
Factor Arrows
1371,451

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, 29, 137, 1451

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 29 x 137 x 1,451 = 311,300,442

This can also be written as 21 x 33 x 291 x 1371 x 1,4511 = 311,300,442

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


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