Q: What are the prime factors of the number 141,140,650?

 A: 2, 5, 7, 23, 89, 197

Why are those the prime factors of the number 141,140,650?

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 141,140,650

141,140,650
Factor Arrows
270,570,325
Factor Arrows
514,114,065
Factor Arrows
52,822,813
Factor Arrows
7403,259
Factor Arrows
2317,533
Factor Arrows
89197

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, 5, 7, 23, 89, 197

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 7 x 23 x 89 x 197 = 141,140,650

This can also be written as 21 x 52 x 71 x 231 x 891 x 1971 = 141,140,650

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


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