Q: What are the prime factors of the number 304,212,128?

 A: 2, 11, 41, 107, 197

Why are those the prime factors of the number 304,212,128?

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 304,212,128

304,212,128
Factor Arrows
2152,106,064
Factor Arrows
276,053,032
Factor Arrows
238,026,516
Factor Arrows
219,013,258
Factor Arrows
29,506,629
Factor Arrows
11864,239
Factor Arrows
4121,079
Factor Arrows
107197

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, 41, 107, 197

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 41 x 107 x 197 = 304,212,128

This can also be written as 25 x 111 x 411 x 1071 x 1971 = 304,212,128

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


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