Q: What are the prime factors of the number 11,553,630?

 A: 2, 3, 5, 11, 157, 223

Why are those the prime factors of the number 11,553,630?

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 11,553,630

11,553,630
Factor Arrows
25,776,815
Factor Arrows
31,925,605
Factor Arrows
5385,121
Factor Arrows
1135,011
Factor Arrows
157223

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, 11, 157, 223

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 11 x 157 x 223 = 11,553,630

This can also be written as 21 x 31 x 51 x 111 x 1571 x 2231 = 11,553,630

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


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