Solutions by everydaycalculation.com
The GCF of 21 and 231 is 21.
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 & 462 63 & 693 7 & 77 105 & 1155 147 & 1617 3 & 33 42 & 231 21 & 462 63 & 231 21 & 693 105 & 231 21 & 1155 147 & 231 21 & 1617
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