Q: What are the prime factors of the number 343,252,416?

 A: 2, 3, 13, 113, 1217

Why are those the prime factors of the number 343,252,416?

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 343,252,416

343,252,416
Factor Arrows
2171,626,208
Factor Arrows
285,813,104
Factor Arrows
242,906,552
Factor Arrows
221,453,276
Factor Arrows
210,726,638
Factor Arrows
25,363,319
Factor Arrows
31,787,773
Factor Arrows
13137,521
Factor Arrows
1131,217

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, 113, 1217

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 13 x 113 x 1,217 = 343,252,416

This can also be written as 26 x 31 x 131 x 1131 x 1,2171 = 343,252,416

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


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