Q: What are the prime factors of the number 40,585,384?

 A: 2, 7, 29, 67, 373

Why are those the prime factors of the number 40,585,384?

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 40,585,384

40,585,384
Factor Arrows
220,292,692
Factor Arrows
210,146,346
Factor Arrows
25,073,173
Factor Arrows
7724,739
Factor Arrows
2924,991
Factor Arrows
67373

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, 7, 29, 67, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 29 x 67 x 373 = 40,585,384

This can also be written as 23 x 71 x 291 x 671 x 3731 = 40,585,384

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


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