Q: What are the prime factors of the number 41,842,440?

 A: 2, 3, 5, 17, 43, 53

Why are those the prime factors of the number 41,842,440?

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 41,842,440

41,842,440
Factor Arrows
220,921,220
Factor Arrows
210,460,610
Factor Arrows
25,230,305
Factor Arrows
31,743,435
Factor Arrows
3581,145
Factor Arrows
3193,715
Factor Arrows
538,743
Factor Arrows
172,279
Factor Arrows
4353

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, 3, 5, 17, 43, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 17 x 43 x 53 = 41,842,440

This can also be written as 23 x 33 x 51 x 171 x 431 x 531 = 41,842,440

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


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