Q: What are the prime factors of the number 22,196,745?

 A: 3, 5, 29, 73, 233

Why are those the prime factors of the number 22,196,745?

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 22,196,745

22,196,745
Factor Arrows
37,398,915
Factor Arrows
32,466,305
Factor Arrows
5493,261
Factor Arrows
2917,009
Factor Arrows
73233

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:

3, 5, 29, 73, 233

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 29 x 73 x 233 = 22,196,745

This can also be written as 32 x 51 x 291 x 731 x 2331 = 22,196,745

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


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