Q: What are the prime factors of the number 773,370,342?

 A: 2, 3, 79, 20143

Why are those the prime factors of the number 773,370,342?

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 773,370,342

773,370,342
Factor Arrows
2386,685,171
Factor Arrows
3128,895,057
Factor Arrows
342,965,019
Factor Arrows
314,321,673
Factor Arrows
34,773,891
Factor Arrows
31,591,297
Factor Arrows
7920,143

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, 79, 20143

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 79 x 20,143 = 773,370,342

This can also be written as 21 x 35 x 791 x 20,1431 = 773,370,342

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


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