Q: What are the prime factors of the number 1,705,053?

 A: 3, 7, 1657

Why are those the prime factors of the number 1,705,053?

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 1,705,053

1,705,053
Factor Arrows
3568,351
Factor Arrows
781,193
Factor Arrows
711,599
Factor Arrows
71,657

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, 7, 1657

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 7 x 1,657 = 1,705,053

This can also be written as 31 x 73 x 1,6571 = 1,705,053

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


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