Q: What are the prime factors of the number 231,112,314?

 A: 2, 3, 17, 19, 127, 313

Why are those the prime factors of the number 231,112,314?

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 231,112,314

231,112,314
Factor Arrows
2115,556,157
Factor Arrows
338,518,719
Factor Arrows
312,839,573
Factor Arrows
17755,269
Factor Arrows
1939,751
Factor Arrows
127313

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, 17, 19, 127, 313

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 17 x 19 x 127 x 313 = 231,112,314

This can also be written as 21 x 32 x 171 x 191 x 1271 x 3131 = 231,112,314

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


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