Q: What are the prime factors of the number 223,561,008?

 A: 2, 3, 11, 113, 1249

Why are those the prime factors of the number 223,561,008?

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 223,561,008

223,561,008
Factor Arrows
2111,780,504
Factor Arrows
255,890,252
Factor Arrows
227,945,126
Factor Arrows
213,972,563
Factor Arrows
34,657,521
Factor Arrows
31,552,507
Factor Arrows
11141,137
Factor Arrows
1131,249

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, 113, 1249

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 11 x 113 x 1,249 = 223,561,008

This can also be written as 24 x 32 x 111 x 1131 x 1,2491 = 223,561,008

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


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