What is the Greatest Common Factor of 7 and 27?
Greatest common factor (GCF) of 7 and 27 is 1.
GCF(7,27) = 1
We will now calculate the prime factors of 7 and 27, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7 and 27.
How to find the GCF of 7 and 27?
We will first find the prime factorization of 7 and 27. After we will calculate the factors of 7 and 27 and find the biggest common factor number .
Step-1: Prime Factorization of 7
Prime factors of 7 are 7. Prime factorization of 7 in exponential form is:
7 = 71
Step-2: Prime Factorization of 27
Prime factors of 27 are 3. Prime factorization of 27 in exponential form is:
27 = 33
Step-3: Factors of 7
List of positive integer factors of 7 that divides 7 without a remainder.
1
Step-4: Factors of 27
List of positive integer factors of 27 that divides 7 without a remainder.
1, 3, 9
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 7 and 27. The biggest common factor number is the GCF number.
So the greatest common factor 7 and 27 is 1.
Also check out the Least Common Multiple of 7 and 27