Q: What are the prime factors of the number 40,402,200?

 A: 2, 3, 5, 17, 233

Why are those the prime factors of the number 40,402,200?

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 40,402,200

40,402,200
Factor Arrows
220,201,100
Factor Arrows
210,100,550
Factor Arrows
25,050,275
Factor Arrows
31,683,425
Factor Arrows
5336,685
Factor Arrows
567,337
Factor Arrows
173,961
Factor Arrows
17233

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, 233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 17 x 17 x 233 = 40,402,200

This can also be written as 23 x 31 x 52 x 172 x 2331 = 40,402,200

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


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