Q: What are the prime factors of the number 7,190,040?

 A: 2, 3, 5, 11, 13, 419

Why are those the prime factors of the number 7,190,040?

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 7,190,040

7,190,040
Factor Arrows
23,595,020
Factor Arrows
21,797,510
Factor Arrows
2898,755
Factor Arrows
3299,585
Factor Arrows
559,917
Factor Arrows
115,447
Factor Arrows
13419

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, 11, 13, 419

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 11 x 13 x 419 = 7,190,040

This can also be written as 23 x 31 x 51 x 111 x 131 x 4191 = 7,190,040

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


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