Q: What are the prime factors of the number 140,748,804?

 A: 2, 3, 7, 31, 43, 419

Why are those the prime factors of the number 140,748,804?

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 140,748,804

140,748,804
Factor Arrows
270,374,402
Factor Arrows
235,187,201
Factor Arrows
311,729,067
Factor Arrows
33,909,689
Factor Arrows
7558,527
Factor Arrows
3118,017
Factor Arrows
43419

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, 31, 43, 419

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 31 x 43 x 419 = 140,748,804

This can also be written as 22 x 32 x 71 x 311 x 431 x 4191 = 140,748,804

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


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