Q: What are the prime factors of the number 112,242,438?

 A: 2, 3, 7, 11, 23, 503

Why are those the prime factors of the number 112,242,438?

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 112,242,438

112,242,438
Factor Arrows
256,121,219
Factor Arrows
318,707,073
Factor Arrows
36,235,691
Factor Arrows
7890,813
Factor Arrows
7127,259
Factor Arrows
1111,569
Factor Arrows
23503

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, 11, 23, 503

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 11 x 23 x 503 = 112,242,438

This can also be written as 21 x 32 x 72 x 111 x 231 x 5031 = 112,242,438

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


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