effieiently with respect to time used,with only once the number is used mwthod in java code example

Example: Write a JavaScript function called “GCD()” that takes the values from “Number 1“and “Number 2” then calculate the greatest common divisor of the two numbers and show the result as alert.

Write a JavaScript function called “GCD()” that takes the values from “Number 1“and “Number 2” then calculate the greatest common divisor of the two numbers and show the result as alert.