Q: What are the prime factors of the number 14,333,440?

 A: 2, 5, 11, 509

Why are those the prime factors of the number 14,333,440?

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 14,333,440

14,333,440
Factor Arrows
27,166,720
Factor Arrows
23,583,360
Factor Arrows
21,791,680
Factor Arrows
2895,840
Factor Arrows
2447,920
Factor Arrows
2223,960
Factor Arrows
2111,980
Factor Arrows
255,990
Factor Arrows
227,995
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, 5, 11, 509

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 11 x 509 = 14,333,440

This can also be written as 29 x 51 x 111 x 5091 = 14,333,440

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


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