Q: What are the prime factors of the number 343,511,118?

 A: 2, 3, 23, 79, 389

Why are those the prime factors of the number 343,511,118?

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 343,511,118

343,511,118
Factor Arrows
2171,755,559
Factor Arrows
357,251,853
Factor Arrows
319,083,951
Factor Arrows
36,361,317
Factor Arrows
32,120,439
Factor Arrows
3706,813
Factor Arrows
2330,731
Factor Arrows
79389

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, 23, 79, 389

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 23 x 79 x 389 = 343,511,118

This can also be written as 21 x 35 x 231 x 791 x 3891 = 343,511,118

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


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