A Rope Can Be Cut Into An Equal Lenght With No Rope Left Over.The Lenght Can Be 15Cm, 18Cm Or 25Cm.What Is The Shortest Possible Lenght Of The Rope?

Answer 1

you want the LCM of 15, 18, and 25

multiply the prime factors ... 2 * 3 * 3 * 5 * 5