Q: What are the prime factors of the number 7,962,840?

 A: 2, 3, 5, 73, 101

Why are those the prime factors of the number 7,962,840?

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 7,962,840

7,962,840
Factor Arrows
23,981,420
Factor Arrows
21,990,710
Factor Arrows
2995,355
Factor Arrows
3331,785
Factor Arrows
3110,595
Factor Arrows
336,865
Factor Arrows
57,373
Factor Arrows
73101

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, 73, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 73 x 101 = 7,962,840

This can also be written as 23 x 33 x 51 x 731 x 1011 = 7,962,840

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


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