What is the Greatest Common Factor of 49 and 65?
Greatest common factor (GCF) of 49 and 65 is 1.
GCF(49,65) = 1
We will now calculate the prime factors of 49 and 65, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 49 and 65.
How to find the GCF of 49 and 65?
We will first find the prime factorization of 49 and 65. After we will calculate the factors of 49 and 65 and find the biggest common factor number .
Step-1: Prime Factorization of 49
Prime factors of 49 are 7. Prime factorization of 49 in exponential form is:
49 = 72
Step-2: Prime Factorization of 65
Prime factors of 65 are 5, 13. Prime factorization of 65 in exponential form is:
65 = 51 × 131
Step-3: Factors of 49
List of positive integer factors of 49 that divides 49 without a remainder.
1, 7
Step-4: Factors of 65
List of positive integer factors of 65 that divides 49 without a remainder.
1, 5, 13
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 49 and 65. The biggest common factor number is the GCF number.
So the greatest common factor 49 and 65 is 1.
Also check out the Least Common Multiple of 49 and 65