Q: What are the prime factors of the number 7,871,260?

 A: 2, 5, 103, 3821

Why are those the prime factors of the number 7,871,260?

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 7,871,260

7,871,260
Factor Arrows
23,935,630
Factor Arrows
21,967,815
Factor Arrows
5393,563
Factor Arrows
1033,821

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, 5, 103, 3821

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 103 x 3,821 = 7,871,260

This can also be written as 22 x 51 x 1031 x 3,8211 = 7,871,260

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


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