Q: What are the prime factors of the number 331,176,286?

 A: 2, 7, 17, 31, 44887

Why are those the prime factors of the number 331,176,286?

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 331,176,286

331,176,286
Factor Arrows
2165,588,143
Factor Arrows
723,655,449
Factor Arrows
171,391,497
Factor Arrows
3144,887

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, 7, 17, 31, 44887

We can check our work by multiplying all of the prime factors together: 2 x 7 x 17 x 31 x 44,887 = 331,176,286

This can also be written as 21 x 71 x 171 x 311 x 44,8871 = 331,176,286

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


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