Q: What are the prime factors of the number 1,943,744?

 A: 2, 11, 251

Why are those the prime factors of the number 1,943,744?

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 1,943,744

1,943,744
Factor Arrows
2971,872
Factor Arrows
2485,936
Factor Arrows
2242,968
Factor Arrows
2121,484
Factor Arrows
260,742
Factor Arrows
230,371
Factor Arrows
112,761
Factor Arrows
11251

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, 11, 251

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 11 x 11 x 251 = 1,943,744

This can also be written as 26 x 112 x 2511 = 1,943,744

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


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