Q: What are the prime factors of the number 11,108,190?

 A: 2, 3, 5, 43, 79, 109

Why are those the prime factors of the number 11,108,190?

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 11,108,190

11,108,190
Factor Arrows
25,554,095
Factor Arrows
31,851,365
Factor Arrows
5370,273
Factor Arrows
438,611
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, 5, 43, 79, 109

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 43 x 79 x 109 = 11,108,190

This can also be written as 21 x 31 x 51 x 431 x 791 x 1091 = 11,108,190

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


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