Q: What are the prime factors of the number 11,573,184?

 A: 2, 3, 7, 79, 109

Why are those the prime factors of the number 11,573,184?

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 11,573,184

11,573,184
Factor Arrows
25,786,592
Factor Arrows
22,893,296
Factor Arrows
21,446,648
Factor Arrows
2723,324
Factor Arrows
2361,662
Factor Arrows
2180,831
Factor Arrows
360,277
Factor Arrows
78,611
Factor Arrows
79109

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, 7, 79, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 x 79 x 109 = 11,573,184

This can also be written as 26 x 31 x 71 x 791 x 1091 = 11,573,184

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


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