Q: What are the prime factors of the number 140,537,749?

 A: 11, 563, 2063

Why are those the prime factors of the number 140,537,749?

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 140,537,749

140,537,749
Factor Arrows
1112,776,159
Factor Arrows
111,161,469
Factor Arrows
5632,063

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:

11, 563, 2063

We can check our work by multiplying all of the prime factors together: 11 x 11 x 563 x 2,063 = 140,537,749

This can also be written as 112 x 5631 x 2,0631 = 140,537,749

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


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