Solution 11706: Calculating the Least Common Multiple (LCM) of Two Numbers Using the TI-83 Family, TI-84 Plus Family and TI-Nspire™ Handheld in TI-84 Plus Mode.
How do I calculate the least common multiple (lcm) of two numbers using my TI-83 family, TI-84 Plus family and TI-Nspire handheld in TI-84 Plus Mode?
To calculate the least common multiple of two numbers using the TI-83 family, TI-84 Plus family or TI-Nspire handheld in TI-84 Plus mode, follow the example below.
Example: Find the least common multiple of 2 and 5.
1) Press [MATH] and arrow to the right to select "NUM".
2) Press  to select the lcm( function.
3) Press  [,]  [ ) ] [ENTER] to complete the input and finish the calculation.
Please Note: TI-Nspire handheld in TI-84 Plus mode users may refer to the TI-84 Plus family guidebook.