# TI-BASIC:Gcd

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Jump to navigationJump to search**Command Summary**

Finds the greatest common divisor of two values.

**Command Syntax**

gcd(*value1*, *value2*)

**Menu Location**

Press:

- MATH to access the Math menu.
- RIGHT to access the NUM submenu.
- 9 to select gcd(, or use arrows.

TI-83/84/+/SE

2 bytes

Returns the greatest common divisor (GCD) of two nonnegative integers. Also works on lists.

gcd(8,6) 2 gcd({9,12},6) {3 6} gcd({14,12},{6,8}) {2 4}

# Error Conditions

**ERR:DIM MISMATCH**is thrown if the arguments are two lists that don't have the same number of elements.**ERR:DOMAIN**is thrown if the arguments aren't positive integers (or lists of positive integers) less than 1e12.