Q: What are the prime factors of the number 7,940,608?

 A: 2, 13, 1193

Why are those the prime factors of the number 7,940,608?

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 7,940,608

7,940,608
Factor Arrows
23,970,304
Factor Arrows
21,985,152
Factor Arrows
2992,576
Factor Arrows
2496,288
Factor Arrows
2248,144
Factor Arrows
2124,072
Factor Arrows
262,036
Factor Arrows
231,018
Factor Arrows
215,509
Factor Arrows
131,193

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, 13, 1193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 1,193 = 7,940,608

This can also be written as 29 x 131 x 1,1931 = 7,940,608

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


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