Common Multiples and Common Divisors
One of the selections on the NUMBER FUNCTIONS menu lets you calculate least common multiples and greatest common divisors.
The LCM Function
Selecting { LCM } from the NUMBER FUNCTIONS menu calculates both the least common multiple and the greatest common divisor of two numbers.Because this function requires two numbers for the comparison, and calculates two results, a separate storage area is required. You must store one number in the t-register and place the other number in the display. The function places the least common multiple in the display, and stores the greatest common divisor in the t-register.
To use the LCM function:
- Enter one of the numbers and press [ x~t ] to store the number in the t-register.
- Enter the other number and press [ NUM ]{ --> }{ LCM } to perform the calculation and display the least common multiple.
- Press [ x~t ] to display the greatest common divisor.
Example
Determine the least common multiple and greatest common divisor of the numbers 36 and 48.Procedure | Press | Display |
|---|---|---|
| Clear display | [ CLEAR ] |  |
| Enter the two numbers | 36 [ x~t ] 48 |  |
| Display LCM (GCD stored in t-register) | [ NUM ] { --> } { LCM } |  |
| Display GCD | .5 |  |
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