What is the Greatest Common Factor of 61545 and 61551?

Greatest common factor (GCF) of 61545 and 61551 is 3.

GCF(61545,61551) = 3

We will now calculate the prime factors of 61545 and 61551, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 61545 and 61551.

How to find the GCF of 61545 and 61551?

We will first find the prime factorization of 61545 and 61551. After we will calculate the factors of 61545 and 61551 and find the biggest common factor number .

Step-1: Prime Factorization of 61545

Prime factors of 61545 are 3, 5, 11, 373. Prime factorization of 61545 in exponential form is:

61545 = 3¹ × 5¹ × 11¹ × 373¹

Step-2: Prime Factorization of 61551

Prime factors of 61551 are 3, 7, 977. Prime factorization of 61551 in exponential form is:

61551 = 3² × 7¹ × 977¹

Step-3: Factors of 61545

List of positive integer factors of 61545 that divides 61545 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165, 373, 1119, 1865, 4103, 5595, 12309, 20515

Step-4: Factors of 61551

List of positive integer factors of 61551 that divides 61545 without a remainder.

1, 3, 7, 9, 21, 63, 977, 2931, 6839, 8793, 20517

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 61545 and 61551. The biggest common factor number is the GCF number.
So the greatest common factor 61545 and 61551 is 3.

Also check out the Least Common Multiple of 61545 and 61551