What is the Greatest Common Factor of 61649 and 61661?

Greatest common factor (GCF) of 61649 and 61661 is 1.

GCF(61649,61661) = 1

We will now calculate the prime factors of 61649 and 61661, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61649 and 61661.

How to find the GCF of 61649 and 61661?

We will first find the prime factorization of 61649 and 61661. After we will calculate the factors of 61649 and 61661 and find the biggest common factor number .

Step-1: Prime Factorization of 61649

Prime factors of 61649 are 7, 8807. Prime factorization of 61649 in exponential form is:

61649 = 7¹ × 8807¹

Step-2: Prime Factorization of 61661

Prime factors of 61661 are 197, 313. Prime factorization of 61661 in exponential form is:

61661 = 197¹ × 313¹

Step-3: Factors of 61649

List of positive integer factors of 61649 that divides 61649 without a remainder.

1, 7, 8807

Step-4: Factors of 61661

List of positive integer factors of 61661 that divides 61649 without a remainder.

1, 197, 313

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61649 and 61661. The biggest common factor number is the GCF number.
So the greatest common factor 61649 and 61661 is 1.

Also check out the Least Common Multiple of 61649 and 61661