Q: What are the prime factors of the number 123,262,425?

 A: 3, 5, 11, 13, 1277

Why are those the prime factors of the number 123,262,425?

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 123,262,425

123,262,425
Factor Arrows
341,087,475
Factor Arrows
313,695,825
Factor Arrows
34,565,275
Factor Arrows
5913,055
Factor Arrows
5182,611
Factor Arrows
1116,601
Factor Arrows
131,277

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:

3, 5, 11, 13, 1277

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 5 x 11 x 13 x 1,277 = 123,262,425

This can also be written as 33 x 52 x 111 x 131 x 1,2771 = 123,262,425

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


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