Q: What are the prime factors of the number 147,247,776?

 A: 2, 3, 13, 67, 587

Why are those the prime factors of the number 147,247,776?

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 147,247,776

147,247,776
Factor Arrows
273,623,888
Factor Arrows
236,811,944
Factor Arrows
218,405,972
Factor Arrows
29,202,986
Factor Arrows
24,601,493
Factor Arrows
31,533,831
Factor Arrows
3511,277
Factor Arrows
1339,329
Factor Arrows
67587

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, 13, 67, 587

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 67 x 587 = 147,247,776

This can also be written as 25 x 32 x 131 x 671 x 5871 = 147,247,776

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


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