Q: What are the prime factors of the number 114,440,640?

 A: 2, 3, 5, 23, 71, 73

Why are those the prime factors of the number 114,440,640?

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 114,440,640

114,440,640
Factor Arrows
257,220,320
Factor Arrows
228,610,160
Factor Arrows
214,305,080
Factor Arrows
27,152,540
Factor Arrows
23,576,270
Factor Arrows
21,788,135
Factor Arrows
3596,045
Factor Arrows
5119,209
Factor Arrows
235,183
Factor Arrows
7173

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, 5, 23, 71, 73

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 3 x 5 x 23 x 71 x 73 = 114,440,640

This can also be written as 26 x 31 x 51 x 231 x 711 x 731 = 114,440,640

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


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