Solutions by everydaycalculation.com
The GCF of 399 and 42 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: 798 & 84 1197 & 126 133 & 14 1995 & 210 2793 & 294 57 & 6 798 & 42 399 & 84 1197 & 42 399 & 126 1995 & 42 399 & 210 2793 & 42 399 & 294
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