What is the Greatest Common Factor of 851 and 861?
Greatest common factor (GCF) of 851 and 861 is 1.
GCF(851,861) = 1
We will now calculate the prime factors of 851 and 861, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 851 and 861.
How to find the GCF of 851 and 861?
We will first find the prime factorization of 851 and 861. After we will calculate the factors of 851 and 861 and find the biggest common factor number .
Step-1: Prime Factorization of 851
Prime factors of 851 are 23, 37. Prime factorization of 851 in exponential form is:
851 = 231 × 371
Step-2: Prime Factorization of 861
Prime factors of 861 are 3, 7, 41. Prime factorization of 861 in exponential form is:
861 = 31 × 71 × 411
Step-3: Factors of 851
List of positive integer factors of 851 that divides 851 without a remainder.
1, 23, 37
Step-4: Factors of 861
List of positive integer factors of 861 that divides 851 without a remainder.
1, 3, 7, 21, 41, 123, 287
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 851 and 861. The biggest common factor number is the GCF number.
So the greatest common factor 851 and 861 is 1.
Also check out the Least Common Multiple of 851 and 861
Related Greatest Common Factors of 851
- GCF of 851 and 855
- GCF of 851 and 856
- GCF of 851 and 857
- GCF of 851 and 858
- GCF of 851 and 859
- GCF of 851 and 860
- GCF of 851 and 861
- GCF of 851 and 862
- GCF of 851 and 863
- GCF of 851 and 864
- GCF of 851 and 865
- GCF of 851 and 866
- GCF of 851 and 867
- GCF of 851 and 868
- GCF of 851 and 869
- GCF of 851 and 870
- GCF of 851 and 871
Related Greatest Common Factors of 861
- GCF of 861 and 865
- GCF of 861 and 866
- GCF of 861 and 867
- GCF of 861 and 868
- GCF of 861 and 869
- GCF of 861 and 870
- GCF of 861 and 871
- GCF of 861 and 872
- GCF of 861 and 873
- GCF of 861 and 874
- GCF of 861 and 875
- GCF of 861 and 876
- GCF of 861 and 877
- GCF of 861 and 878
- GCF of 861 and 879
- GCF of 861 and 880
- GCF of 861 and 881