Q: What are the prime factors of the number 1,751,440?

 A: 2, 5, 21893

Why are those the prime factors of the number 1,751,440?

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 1,751,440

1,751,440
Factor Arrows
2875,720
Factor Arrows
2437,860
Factor Arrows
2218,930
Factor Arrows
2109,465
Factor Arrows
521,893

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, 21893

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 21,893 = 1,751,440

This can also be written as 24 x 51 x 21,8931 = 1,751,440

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


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