Q: What are the prime factors of the number 11,723,250?

 A: 2, 3, 5, 7, 11, 29

Why are those the prime factors of the number 11,723,250?

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 11,723,250

11,723,250
Factor Arrows
25,861,625
Factor Arrows
31,953,875
Factor Arrows
5390,775
Factor Arrows
578,155
Factor Arrows
515,631
Factor Arrows
72,233
Factor Arrows
7319
Factor Arrows
1129

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, 5, 7, 11, 29

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 7 x 7 x 11 x 29 = 11,723,250

This can also be written as 21 x 31 x 53 x 72 x 111 x 291 = 11,723,250

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


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