Solutions by everydaycalculation.com
The GCF of 42 and 1239 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: 84 & 2478 126 & 3717 14 & 413 210 & 6195 294 & 8673 6 & 177 84 & 1239 42 & 2478 126 & 1239 42 & 3717 210 & 1239 42 & 6195 294 & 1239 42 & 8673
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