Q: What are the prime factors of the number 1,350,432?

 A: 2, 3, 521

Why are those the prime factors of the number 1,350,432?

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 1,350,432

1,350,432
Factor Arrows
2675,216
Factor Arrows
2337,608
Factor Arrows
2168,804
Factor Arrows
284,402
Factor Arrows
242,201
Factor Arrows
314,067
Factor Arrows
34,689
Factor Arrows
31,563
Factor Arrows
3521

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, 521

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 521 = 1,350,432

This can also be written as 25 x 34 x 5211 = 1,350,432

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


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