Q: What are the prime factors of the number 141,201,445?

 A: 5, 7, 11, 19, 97, 199

Why are those the prime factors of the number 141,201,445?

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 141,201,445

141,201,445
Factor Arrows
528,240,289
Factor Arrows
74,034,327
Factor Arrows
11366,757
Factor Arrows
1919,303
Factor Arrows
97199

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:

5, 7, 11, 19, 97, 199

We can check our work by multiplying all of the prime factors together: 5 x 7 x 11 x 19 x 97 x 199 = 141,201,445

This can also be written as 51 x 71 x 111 x 191 x 971 x 1991 = 141,201,445

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


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