Solutions by everydaycalculation.com
The GCF of 21 and 136 is 1.
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: 42 & 272 63 & 408 105 & 680 147 & 952 42 & 136 21 & 272 63 & 136 21 & 408 105 & 136 21 & 680 147 & 136 21 & 952
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