Q: What are the prime factors of the number 22,222,350?

 A: 2, 3, 5, 31, 59

Why are those the prime factors of the number 22,222,350?

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 22,222,350

22,222,350
Factor Arrows
211,111,175
Factor Arrows
33,703,725
Factor Arrows
31,234,575
Factor Arrows
3411,525
Factor Arrows
3137,175
Factor Arrows
345,725
Factor Arrows
59,145
Factor Arrows
51,829
Factor Arrows
3159

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, 31, 59

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 5 x 5 x 31 x 59 = 22,222,350

This can also be written as 21 x 35 x 52 x 311 x 591 = 22,222,350

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


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