Q: What are the prime factors of the number 22,073,688?

 A: 2, 3, 7, 13, 1123

Why are those the prime factors of the number 22,073,688?

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 22,073,688

22,073,688
Factor Arrows
211,036,844
Factor Arrows
25,518,422
Factor Arrows
22,759,211
Factor Arrows
3919,737
Factor Arrows
3306,579
Factor Arrows
3102,193
Factor Arrows
714,599
Factor Arrows
131,123

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, 13, 1123

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 7 x 13 x 1,123 = 22,073,688

This can also be written as 23 x 33 x 71 x 131 x 1,1231 = 22,073,688

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


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