Q: What are the prime factors of the number 40,192,724?

 A: 2, 11, 13, 29, 2423

Why are those the prime factors of the number 40,192,724?

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 40,192,724

40,192,724
Factor Arrows
220,096,362
Factor Arrows
210,048,181
Factor Arrows
11913,471
Factor Arrows
1370,267
Factor Arrows
292,423

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, 11, 13, 29, 2423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 13 x 29 x 2,423 = 40,192,724

This can also be written as 22 x 111 x 131 x 291 x 2,4231 = 40,192,724

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


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