Q: What are the prime factors of the number 1,343,760?

 A: 2, 3, 5, 11, 509

Why are those the prime factors of the number 1,343,760?

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 1,343,760

1,343,760
Factor Arrows
2671,880
Factor Arrows
2335,940
Factor Arrows
2167,970
Factor Arrows
283,985
Factor Arrows
327,995
Factor Arrows
55,599
Factor Arrows
11509

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, 3, 5, 11, 509

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 11 x 509 = 1,343,760

This can also be written as 24 x 31 x 51 x 111 x 5091 = 1,343,760

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


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