Q: What are the prime factors of the number 247,740,348?

 A: 2, 3, 157, 131497

Why are those the prime factors of the number 247,740,348?

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 247,740,348

247,740,348
Factor Arrows
2123,870,174
Factor Arrows
261,935,087
Factor Arrows
320,645,029
Factor Arrows
157131,497

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, 157, 131497

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 157 x 131,497 = 247,740,348

This can also be written as 22 x 31 x 1571 x 131,4971 = 247,740,348

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


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