What is the Greatest Common Factor of 865 and 872?
Greatest common factor (GCF) of 865 and 872 is 1.
GCF(865,872) = 1
We will now calculate the prime factors of 865 and 872, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 865 and 872.
How to find the GCF of 865 and 872?
We will first find the prime factorization of 865 and 872. After we will calculate the factors of 865 and 872 and find the biggest common factor number .
Step-1: Prime Factorization of 865
Prime factors of 865 are 5, 173. Prime factorization of 865 in exponential form is:
865 = 51 × 1731
Step-2: Prime Factorization of 872
Prime factors of 872 are 2, 109. Prime factorization of 872 in exponential form is:
872 = 23 × 1091
Step-3: Factors of 865
List of positive integer factors of 865 that divides 865 without a remainder.
1, 5, 173
Step-4: Factors of 872
List of positive integer factors of 872 that divides 865 without a remainder.
1, 2, 4, 8, 109, 218, 436
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 865 and 872. The biggest common factor number is the GCF number.
So the greatest common factor 865 and 872 is 1.
Also check out the Least Common Multiple of 865 and 872
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