Q: What are the prime factors of the number 40,420,237?

 A: 11, 13, 17, 1279

Why are those the prime factors of the number 40,420,237?

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 40,420,237

40,420,237
Factor Arrows
113,674,567
Factor Arrows
13282,659
Factor Arrows
1321,743
Factor Arrows
171,279

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:

11, 13, 17, 1279

We can check our work by multiplying all of the prime factors together: 11 x 13 x 13 x 17 x 1,279 = 40,420,237

This can also be written as 111 x 132 x 171 x 1,2791 = 40,420,237

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


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