Q: What are the prime factors of the number 20,344,203?

 A: 3, 11, 43, 59

Why are those the prime factors of the number 20,344,203?

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 20,344,203

20,344,203
Factor Arrows
36,781,401
Factor Arrows
32,260,467
Factor Arrows
3753,489
Factor Arrows
3251,163
Factor Arrows
383,721
Factor Arrows
327,907
Factor Arrows
112,537
Factor Arrows
4359

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, 11, 43, 59

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 3 x 11 x 43 x 59 = 20,344,203

This can also be written as 36 x 111 x 431 x 591 = 20,344,203

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


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