Q: What are the prime factors of the number 32,875,520?

 A: 2, 5, 6421

Why are those the prime factors of the number 32,875,520?

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 32,875,520

32,875,520
Factor Arrows
216,437,760
Factor Arrows
28,218,880
Factor Arrows
24,109,440
Factor Arrows
22,054,720
Factor Arrows
21,027,360
Factor Arrows
2513,680
Factor Arrows
2256,840
Factor Arrows
2128,420
Factor Arrows
264,210
Factor Arrows
232,105
Factor Arrows
56,421

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, 6421

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 6,421 = 32,875,520

This can also be written as 210 x 51 x 6,4211 = 32,875,520

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


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