Q: What are the prime factors of the number 331,201,245?

 A: 3, 5, 37, 47, 12697

Why are those the prime factors of the number 331,201,245?

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 331,201,245

331,201,245
Factor Arrows
3110,400,415
Factor Arrows
522,080,083
Factor Arrows
37596,759
Factor Arrows
4712,697

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:

3, 5, 37, 47, 12697

We can check our work by multiplying all of the prime factors together: 3 x 5 x 37 x 47 x 12,697 = 331,201,245

This can also be written as 31 x 51 x 371 x 471 x 12,6971 = 331,201,245

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


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