Q: What are the prime factors of the number 346,336,128?

 A: 2, 3, 100213

Why are those the prime factors of the number 346,336,128?

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 346,336,128

346,336,128
Factor Arrows
2173,168,064
Factor Arrows
286,584,032
Factor Arrows
243,292,016
Factor Arrows
221,646,008
Factor Arrows
210,823,004
Factor Arrows
25,411,502
Factor Arrows
22,705,751
Factor Arrows
3901,917
Factor Arrows
3300,639
Factor Arrows
3100,213

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, 100213

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 2 x 3 x 3 x 3 x 100,213 = 346,336,128

This can also be written as 27 x 33 x 100,2131 = 346,336,128

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


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