Q: What are the prime factors of the number 32,021,964?

 A: 2, 3, 13, 53, 1291

Why are those the prime factors of the number 32,021,964?

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 32,021,964

32,021,964
Factor Arrows
216,010,982
Factor Arrows
28,005,491
Factor Arrows
32,668,497
Factor Arrows
3889,499
Factor Arrows
1368,423
Factor Arrows
531,291

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, 13, 53, 1291

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 53 x 1,291 = 32,021,964

This can also be written as 22 x 32 x 131 x 531 x 1,2911 = 32,021,964

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


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