Q: What are the prime factors of the number 41,011,520?

 A: 2, 5, 11, 61, 191

Why are those the prime factors of the number 41,011,520?

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 41,011,520

41,011,520
Factor Arrows
220,505,760
Factor Arrows
210,252,880
Factor Arrows
25,126,440
Factor Arrows
22,563,220
Factor Arrows
21,281,610
Factor Arrows
2640,805
Factor Arrows
5128,161
Factor Arrows
1111,651
Factor Arrows
61191

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, 5, 11, 61, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 11 x 61 x 191 = 41,011,520

This can also be written as 26 x 51 x 111 x 611 x 1911 = 41,011,520

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


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