Q: What are the prime factors of the number 22,228,560?

 A: 2, 3, 5, 41, 251

Why are those the prime factors of the number 22,228,560?

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 22,228,560

22,228,560
Factor Arrows
211,114,280
Factor Arrows
25,557,140
Factor Arrows
22,778,570
Factor Arrows
21,389,285
Factor Arrows
3463,095
Factor Arrows
3154,365
Factor Arrows
351,455
Factor Arrows
510,291
Factor Arrows
41251

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, 41, 251

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 3 x 5 x 41 x 251 = 22,228,560

This can also be written as 24 x 33 x 51 x 411 x 2511 = 22,228,560

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


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