Q: What are the prime factors of the number 340,332,256?

 A: 2, 11, 19, 151, 337

Why are those the prime factors of the number 340,332,256?

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 340,332,256

340,332,256
Factor Arrows
2170,166,128
Factor Arrows
285,083,064
Factor Arrows
242,541,532
Factor Arrows
221,270,766
Factor Arrows
210,635,383
Factor Arrows
11966,853
Factor Arrows
1950,887
Factor Arrows
151337

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, 11, 19, 151, 337

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 19 x 151 x 337 = 340,332,256

This can also be written as 25 x 111 x 191 x 1511 x 3371 = 340,332,256

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


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