Q: What are the prime factors of the number 35,123,231?

 A: 11, 13, 23, 59, 181

Why are those the prime factors of the number 35,123,231?

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 35,123,231

35,123,231
Factor Arrows
113,193,021
Factor Arrows
13245,617
Factor Arrows
2310,679
Factor Arrows
59181

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:

11, 13, 23, 59, 181

We can check our work by multiplying all of the prime factors together: 11 x 13 x 23 x 59 x 181 = 35,123,231

This can also be written as 111 x 131 x 231 x 591 x 1811 = 35,123,231

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


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