Q: What are the prime factors of the number 41,661,543?

 A: 3, 7, 11, 17, 103

Why are those the prime factors of the number 41,661,543?

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 41,661,543

41,661,543
Factor Arrows
313,887,181
Factor Arrows
71,983,883
Factor Arrows
11180,353
Factor Arrows
1710,609
Factor Arrows
103103

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, 7, 11, 17, 103

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 17 x 103 x 103 = 41,661,543

This can also be written as 31 x 71 x 111 x 171 x 1032 = 41,661,543

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


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