Solutions by everydaycalculation.com
The GCF of 21 and 162 is 3.
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 & 324 63 & 486 7 & 54 105 & 810 147 & 1134 42 & 162 21 & 324 63 & 162 21 & 486 105 & 162 21 & 810 147 & 162 21 & 1134
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