Q: What are the prime factors of the number 231,374,286?

 A: 2, 3, 11, 13, 19, 83

Why are those the prime factors of the number 231,374,286?

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 231,374,286

231,374,286
Factor Arrows
2115,687,143
Factor Arrows
338,562,381
Factor Arrows
312,854,127
Factor Arrows
34,284,709
Factor Arrows
11389,519
Factor Arrows
1329,963
Factor Arrows
191,577
Factor Arrows
1983

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, 11, 13, 19, 83

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 13 x 19 x 19 x 83 = 231,374,286

This can also be written as 21 x 33 x 111 x 131 x 192 x 831 = 231,374,286

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


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