What is the Greatest Common Factor of 661 and 681?
Greatest common factor (GCF) of 661 and 681 is 1.
GCF(661,681) = 1
We will now calculate the prime factors of 661 and 681, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 661 and 681.
How to find the GCF of 661 and 681?
We will first find the prime factorization of 661 and 681. After we will calculate the factors of 661 and 681 and find the biggest common factor number .
Step-1: Prime Factorization of 661
Prime factors of 661 are 661. Prime factorization of 661 in exponential form is:
661 = 6611
Step-2: Prime Factorization of 681
Prime factors of 681 are 3, 227. Prime factorization of 681 in exponential form is:
681 = 31 × 2271
Step-3: Factors of 661
List of positive integer factors of 661 that divides 661 without a remainder.
1
Step-4: Factors of 681
List of positive integer factors of 681 that divides 661 without a remainder.
1, 3, 227
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 661 and 681. The biggest common factor number is the GCF number.
So the greatest common factor 661 and 681 is 1.
Also check out the Least Common Multiple of 661 and 681
Related Greatest Common Factors of 661
- GCF of 661 and 665
- GCF of 661 and 666
- GCF of 661 and 667
- GCF of 661 and 668
- GCF of 661 and 669
- GCF of 661 and 670
- GCF of 661 and 671
- GCF of 661 and 672
- GCF of 661 and 673
- GCF of 661 and 674
- GCF of 661 and 675
- GCF of 661 and 676
- GCF of 661 and 677
- GCF of 661 and 678
- GCF of 661 and 679
- GCF of 661 and 680
- GCF of 661 and 681
Related Greatest Common Factors of 681
- GCF of 681 and 685
- GCF of 681 and 686
- GCF of 681 and 687
- GCF of 681 and 688
- GCF of 681 and 689
- GCF of 681 and 690
- GCF of 681 and 691
- GCF of 681 and 692
- GCF of 681 and 693
- GCF of 681 and 694
- GCF of 681 and 695
- GCF of 681 and 696
- GCF of 681 and 697
- GCF of 681 and 698
- GCF of 681 and 699
- GCF of 681 and 700
- GCF of 681 and 701