Q: What are the prime factors of the number 8,216,064?

 A: 2, 3, 1783

Why are those the prime factors of the number 8,216,064?

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 8,216,064

8,216,064
Factor Arrows
24,108,032
Factor Arrows
22,054,016
Factor Arrows
21,027,008
Factor Arrows
2513,504
Factor Arrows
2256,752
Factor Arrows
2128,376
Factor Arrows
264,188
Factor Arrows
232,094
Factor Arrows
216,047
Factor Arrows
35,349
Factor Arrows
31,783

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, 1783

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 3 x 3 x 1,783 = 8,216,064

This can also be written as 29 x 32 x 1,7831 = 8,216,064

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


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