The Greatest Common Divisor of 63 and 87 is as follows:
3
To find the Greatest Common Divisor of 63 and 87, we first list all the divisors of 63
and all the divisors of 87. Then, we compare the two lists of divisors and pick the largest (greatest)
number that is on both lists, which will be the Greatest Common Divisor of 63 and 87.
Here is the list of 63 divisors: 1, 3, 7, 9, 21, 63
And here is the list of 87 divisors: 1, 3, 29, 87
When we compare the two lists, we see that the greatest number they have in common is 3.
Therefore, once again, the answer to the question "What is the Greatest Common Divisor of 63 and 87?" is:
3
Note, the divisors of 63 are all the numbers you can divide into 63 with no remainder, and the divisors of 87 are
all the numbers you can divide into 87 with no remainder.
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