What is the GCF of 756 and 685?
The GCF of 756 and 685 is 1.
Steps to find GCF
- Find the prime factorization of 756
756 = 2 × 2 × 3 × 3 × 3 × 7 - Find the prime factorization of 685
685 = 5 × 137 - To find the GCF, multiply all the prime factors common to both numbers:
Note that there are no common prime factors. - Therefore, GCF = 1 (since 1 is a factor of every number)
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
Related
Find HCF of: 1512 & 1370 2268 & 2055 3780 & 3425 5292 & 4795 1512 & 685 756 & 1370 2268 & 685 756 & 2055 3780 & 685 756 & 3425 5292 & 685 756 & 4795
GCF Calculator
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).