Q: What are the prime factors of the number 1,571,206?

 A: 2, 7, 13, 89, 97

Why are those the prime factors of the number 1,571,206?

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 1,571,206

1,571,206
Factor Arrows
2785,603
Factor Arrows
7112,229
Factor Arrows
138,633
Factor Arrows
8997

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, 7, 13, 89, 97

We can check our work by multiplying all of the prime factors together: 2 x 7 x 13 x 89 x 97 = 1,571,206

This can also be written as 21 x 71 x 131 x 891 x 971 = 1,571,206

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


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