Q: What are the prime factors of the number 1,940,912?

 A: 2, 29, 47, 89

Why are those the prime factors of the number 1,940,912?

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 1,940,912

1,940,912
Factor Arrows
2970,456
Factor Arrows
2485,228
Factor Arrows
2242,614
Factor Arrows
2121,307
Factor Arrows
294,183
Factor Arrows
4789

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, 29, 47, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 29 x 47 x 89 = 1,940,912

This can also be written as 24 x 291 x 471 x 891 = 1,940,912

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


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