Q: What are the prime factors of the number 40,147,074?

 A: 2, 3, 11, 18433

Why are those the prime factors of the number 40,147,074?

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 40,147,074

40,147,074
Factor Arrows
220,073,537
Factor Arrows
36,691,179
Factor Arrows
32,230,393
Factor Arrows
11202,763
Factor Arrows
1118,433

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, 11, 18433

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 11 x 18,433 = 40,147,074

This can also be written as 21 x 32 x 112 x 18,4331 = 40,147,074

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


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