Q: What are the prime factors of the number 33,421,734?

 A: 2, 3, 283

Why are those the prime factors of the number 33,421,734?

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 33,421,734

33,421,734
Factor Arrows
216,710,867
Factor Arrows
35,570,289
Factor Arrows
31,856,763
Factor Arrows
3618,921
Factor Arrows
3206,307
Factor Arrows
368,769
Factor Arrows
322,923
Factor Arrows
37,641
Factor Arrows
32,547
Factor Arrows
3849
Factor Arrows
3283

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, 283

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 283 = 33,421,734

This can also be written as 21 x 310 x 2831 = 33,421,734

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


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