Q: What are the prime factors of the number 20,303,232?

 A: 2, 3, 37, 1429

Why are those the prime factors of the number 20,303,232?

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 20,303,232

20,303,232
Factor Arrows
210,151,616
Factor Arrows
25,075,808
Factor Arrows
22,537,904
Factor Arrows
21,268,952
Factor Arrows
2634,476
Factor Arrows
2317,238
Factor Arrows
2158,619
Factor Arrows
352,873
Factor Arrows
371,429

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, 37, 1429

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 37 x 1,429 = 20,303,232

This can also be written as 27 x 31 x 371 x 1,4291 = 20,303,232

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


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