Greatest Common Divisor (GCD) of 80 and 90

The Greatest Common Divisor (GCD) of 80 and 90 is the largest positive integer that divides both 80 and 90. Mathematically, the problem we are solving is:

GCD(80,90)

To solve the problem, we will list all the positive integers (divisors) that can be divided into 80 and 90. We will then compare the lists of divisors to find the greatest divisor they have in common.

Divisors of 80:
1, 2, 4, 5, 8, 10, 16, 20, 40, and 80.

Divisors of 90:
1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.

When we compare the lists of divisors above, we see that the largest number they have in common is 10. Thus, the Greatest Common Divisor (GCD) of 80 and 90 is:

GCD(80,90) = 10

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Greatest Common Divisor (GCD) of 80 and 91
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