Q: What are the prime factors of the number 342,015,320?

 A: 2, 5, 2777, 3079

Why are those the prime factors of the number 342,015,320?

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 342,015,320

342,015,320
Factor Arrows
2171,007,660
Factor Arrows
285,503,830
Factor Arrows
242,751,915
Factor Arrows
58,550,383
Factor Arrows
2,7773,079

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, 5, 2777, 3079

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 2,777 x 3,079 = 342,015,320

This can also be written as 23 x 51 x 2,7771 x 3,0791 = 342,015,320

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


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