GCF or Greatest Common Factor

Entering gcd(Number1, Number2) will return the greatest common divisor of the two numeric values. The lcm function wull only accepts two values at a time.

Example: Find the GCF (or GCD) for 12, 24, and 32.

- Press [ CAS] key
- Enter gcd(12,24) and press [Enter] key.
- It should display the result of 12.
- Enter gcd(12,32) and press [Enter] key.
- It should display the final result of 4.

Since GCD can only accept two entries at a time, find the GCD of the first two values, and then find the GCD of your answer and the third value.