Q: What are the prime factors of the number 865,152?

 A: 2, 3, 751

Why are those the prime factors of the number 865,152?

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 865,152

865,152
Factor Arrows
2432,576
Factor Arrows
2216,288
Factor Arrows
2108,144
Factor Arrows
254,072
Factor Arrows
227,036
Factor Arrows
213,518
Factor Arrows
26,759
Factor Arrows
32,253
Factor Arrows
3751

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, 751

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 3 x 3 x 751 = 865,152

This can also be written as 27 x 32 x 7511 = 865,152

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


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