Q: What are the prime factors of the number 40,193,575?

 A: 5, 1259, 1277

Why are those the prime factors of the number 40,193,575?

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 40,193,575

40,193,575
Factor Arrows
58,038,715
Factor Arrows
51,607,743
Factor Arrows
1,2591,277

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:

5, 1259, 1277

We can check our work by multiplying all of the prime factors together: 5 x 5 x 1,259 x 1,277 = 40,193,575

This can also be written as 52 x 1,2591 x 1,2771 = 40,193,575

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


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