Q: What are the prime factors of the number 41,529,915?

 A: 3, 5, 7, 19, 257

Why are those the prime factors of the number 41,529,915?

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 41,529,915

41,529,915
Factor Arrows
313,843,305
Factor Arrows
34,614,435
Factor Arrows
31,538,145
Factor Arrows
3512,715
Factor Arrows
3170,905
Factor Arrows
534,181
Factor Arrows
74,883
Factor Arrows
19257

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, 7, 19, 257

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 7 x 19 x 257 = 41,529,915

This can also be written as 35 x 51 x 71 x 191 x 2571 = 41,529,915

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


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