Q: What are the prime factors of the number 7,878,195?

 A: 3, 5, 13, 67

Why are those the prime factors of the number 7,878,195?

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 7,878,195

7,878,195
Factor Arrows
32,626,065
Factor Arrows
3875,355
Factor Arrows
3291,785
Factor Arrows
558,357
Factor Arrows
134,489
Factor Arrows
6767

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:

3, 5, 13, 67

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 13 x 67 x 67 = 7,878,195

This can also be written as 33 x 51 x 131 x 672 = 7,878,195

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


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