Solutions by everydaycalculation.com
The LCM of 21 and 42 is 42.
MathStep (Works offline)
Download our mobile app and learn how to find LCM of upto four numbers in your own time:
Android and iPhone/ iPad
Find least common multiple (LCM) of: 42 & 84 63 & 126 7 & 14 105 & 210 147 & 294 3 & 6 42 & 42 21 & 84 63 & 42 21 & 126 105 & 42 21 & 210 147 & 42 21 & 294
Enter two numbers separate by comma. To find least common multiple (LCM) of more than two numbers, click here.
© everydaycalculation.com