Q: What are the prime factors of the number 1,047,536?

 A: 2, 7, 47, 199

Why are those the prime factors of the number 1,047,536?

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 1,047,536

1,047,536
Factor Arrows
2523,768
Factor Arrows
2261,884
Factor Arrows
2130,942
Factor Arrows
265,471
Factor Arrows
79,353
Factor Arrows
47199

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, 7, 47, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 47 x 199 = 1,047,536

This can also be written as 24 x 71 x 471 x 1991 = 1,047,536

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


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