What is the Greatest Common Factor of 63 and 80?
Greatest common factor (GCF) of 63 and 80 is 1.
GCF(63,80) = 1
We will now calculate the prime factors of 63 and 80, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63 and 80.
How to find the GCF of 63 and 80?
We will first find the prime factorization of 63 and 80. After we will calculate the factors of 63 and 80 and find the biggest common factor number .
Step-1: Prime Factorization of 63
Prime factors of 63 are 3, 7. Prime factorization of 63 in exponential form is:
63 = 32 × 71
Step-2: Prime Factorization of 80
Prime factors of 80 are 2, 5. Prime factorization of 80 in exponential form is:
80 = 24 × 51
Step-3: Factors of 63
List of positive integer factors of 63 that divides 63 without a remainder.
1, 3, 7, 9, 21
Step-4: Factors of 80
List of positive integer factors of 80 that divides 63 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 40
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 63 and 80. The biggest common factor number is the GCF number.
So the greatest common factor 63 and 80 is 1.
Also check out the Least Common Multiple of 63 and 80