Q: What are the prime factors of the number 1,730,960?

 A: 2, 5, 7, 11, 281

Why are those the prime factors of the number 1,730,960?

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 1,730,960

1,730,960
Factor Arrows
2865,480
Factor Arrows
2432,740
Factor Arrows
2216,370
Factor Arrows
2108,185
Factor Arrows
521,637
Factor Arrows
73,091
Factor Arrows
11281

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, 5, 7, 11, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 11 x 281 = 1,730,960

This can also be written as 24 x 51 x 71 x 111 x 2811 = 1,730,960

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


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