Q: What are the prime factors of the number 15,166,998?

 A: 2, 3, 7, 11, 31, 353

Why are those the prime factors of the number 15,166,998?

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 15,166,998

15,166,998
Factor Arrows
27,583,499
Factor Arrows
32,527,833
Factor Arrows
3842,611
Factor Arrows
7120,373
Factor Arrows
1110,943
Factor Arrows
31353

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, 11, 31, 353

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 11 x 31 x 353 = 15,166,998

This can also be written as 21 x 32 x 71 x 111 x 311 x 3531 = 15,166,998

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


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