Q: What are the prime factors of the number 22,177,056?

 A: 2, 3, 11, 21001

Why are those the prime factors of the number 22,177,056?

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 22,177,056

22,177,056
Factor Arrows
211,088,528
Factor Arrows
25,544,264
Factor Arrows
22,772,132
Factor Arrows
21,386,066
Factor Arrows
2693,033
Factor Arrows
3231,011
Factor Arrows
1121,001

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, 11, 21001

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 11 x 21,001 = 22,177,056

This can also be written as 25 x 31 x 111 x 21,0011 = 22,177,056

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


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