Solutions by everydaycalculation.com
The GCF of 20 and 138 is 2.
MathStep (Works offline)
Download our mobile app and learn how to find GCF of upto four numbers in your own time:
Android and iPhone/ iPad
Find HCF of: 40 & 276 10 & 69 60 & 414 100 & 690 140 & 966 40 & 138 20 & 276 60 & 138 20 & 414 100 & 138 20 & 690 140 & 138 20 & 966
Enter two numbers separate by comma. To find GCF of more than two numbers, click here.
The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).
© everydaycalculation.com