What is the Greatest Common Factor of 48 and 57?
Greatest common factor (GCF) of 48 and 57 is 3.
GCF(48,57) = 3
We will now calculate the prime factors of 48 and 57, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 48 and 57.
How to find the GCF of 48 and 57?
We will first find the prime factorization of 48 and 57. After we will calculate the factors of 48 and 57 and find the biggest common factor number .
Step-1: Prime Factorization of 48
Prime factors of 48 are 2, 3. Prime factorization of 48 in exponential form is:
48 = 24 × 31
Step-2: Prime Factorization of 57
Prime factors of 57 are 3, 19. Prime factorization of 57 in exponential form is:
57 = 31 × 191
Step-3: Factors of 48
List of positive integer factors of 48 that divides 48 without a remainder.
1, 2, 3, 4, 6, 8, 12, 16, 24
Step-4: Factors of 57
List of positive integer factors of 57 that divides 48 without a remainder.
1, 3, 19
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 48 and 57. The biggest common factor number is the GCF number.
So the greatest common factor 48 and 57 is 3.
Also check out the Least Common Multiple of 48 and 57