Q: What are the prime factors of the number 342,451,512?

 A: 2, 3, 13, 569, 643

Why are those the prime factors of the number 342,451,512?

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 342,451,512

342,451,512
Factor Arrows
2171,225,756
Factor Arrows
285,612,878
Factor Arrows
242,806,439
Factor Arrows
314,268,813
Factor Arrows
34,756,271
Factor Arrows
13365,867
Factor Arrows
569643

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, 13, 569, 643

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 13 x 569 x 643 = 342,451,512

This can also be written as 23 x 32 x 131 x 5691 x 6431 = 342,451,512

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


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