Q: What are the prime factors of the number 40,647,258?

 A: 2, 3, 83, 3023

Why are those the prime factors of the number 40,647,258?

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 40,647,258

40,647,258
Factor Arrows
220,323,629
Factor Arrows
36,774,543
Factor Arrows
32,258,181
Factor Arrows
3752,727
Factor Arrows
3250,909
Factor Arrows
833,023

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, 83, 3023

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 83 x 3,023 = 40,647,258

This can also be written as 21 x 34 x 831 x 3,0231 = 40,647,258

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


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