Q: What are the prime factors of the number 114,991,548?

 A: 2, 3, 7, 643, 2129

Why are those the prime factors of the number 114,991,548?

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 114,991,548

114,991,548
Factor Arrows
257,495,774
Factor Arrows
228,747,887
Factor Arrows
39,582,629
Factor Arrows
71,368,947
Factor Arrows
6432,129

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, 643, 2129

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 643 x 2,129 = 114,991,548

This can also be written as 22 x 31 x 71 x 6431 x 2,1291 = 114,991,548

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


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