Q: What are the prime factors of the number 7,068,985?

 A: 5, 7, 11, 43, 61

Why are those the prime factors of the number 7,068,985?

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 7,068,985

7,068,985
Factor Arrows
51,413,797
Factor Arrows
7201,971
Factor Arrows
728,853
Factor Arrows
112,623
Factor Arrows
4361

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:

5, 7, 11, 43, 61

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 11 x 43 x 61 = 7,068,985

This can also be written as 51 x 72 x 111 x 431 x 611 = 7,068,985

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


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