Q: What are the prime factors of the number 40,515,667?

 A: 31, 41, 127, 251

Why are those the prime factors of the number 40,515,667?

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 40,515,667

40,515,667
Factor Arrows
311,306,957
Factor Arrows
4131,877
Factor Arrows
127251

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:

31, 41, 127, 251

We can check our work by multiplying all of the prime factors together: 31 x 41 x 127 x 251 = 40,515,667

This can also be written as 311 x 411 x 1271 x 2511 = 40,515,667

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


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