Q: What are the prime factors of the number 11,251,230?

 A: 2, 3, 5, 19, 19739

Why are those the prime factors of the number 11,251,230?

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 11,251,230

11,251,230
Factor Arrows
25,625,615
Factor Arrows
31,875,205
Factor Arrows
5375,041
Factor Arrows
1919,739

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, 19, 19739

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 19 x 19,739 = 11,251,230

This can also be written as 21 x 31 x 51 x 191 x 19,7391 = 11,251,230

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


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