Q: What are the prime factors of the number 140,765,202?

 A: 2, 3, 17, 79, 647

Why are those the prime factors of the number 140,765,202?

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 140,765,202

140,765,202
Factor Arrows
270,382,601
Factor Arrows
323,460,867
Factor Arrows
37,820,289
Factor Arrows
32,606,763
Factor Arrows
3868,921
Factor Arrows
1751,113
Factor Arrows
79647

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, 17, 79, 647

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 17 x 79 x 647 = 140,765,202

This can also be written as 21 x 34 x 171 x 791 x 6471 = 140,765,202

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


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