Q: What are the prime factors of the number 40,234,440?

 A: 2, 3, 5, 233, 1439

Why are those the prime factors of the number 40,234,440?

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 40,234,440

40,234,440
Factor Arrows
220,117,220
Factor Arrows
210,058,610
Factor Arrows
25,029,305
Factor Arrows
31,676,435
Factor Arrows
5335,287
Factor Arrows
2331,439

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, 233, 1439

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 233 x 1,439 = 40,234,440

This can also be written as 23 x 31 x 51 x 2331 x 1,4391 = 40,234,440

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


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