What is the Greatest Common Factor of 30247 and 30261?

Greatest common factor (GCF) of 30247 and 30261 is 7.

GCF(30247,30261) = 7

We will now calculate the prime factors of 30247 and 30261, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30247 and 30261.

How to find the GCF of 30247 and 30261?

We will first find the prime factorization of 30247 and 30261. After we will calculate the factors of 30247 and 30261 and find the biggest common factor number .

Step-1: Prime Factorization of 30247

Prime factors of 30247 are 7, 29, 149. Prime factorization of 30247 in exponential form is:

30247 = 7¹ × 29¹ × 149¹

Step-2: Prime Factorization of 30261

Prime factors of 30261 are 3, 7, 11, 131. Prime factorization of 30261 in exponential form is:

30261 = 3¹ × 7¹ × 11¹ × 131¹

Step-3: Factors of 30247

List of positive integer factors of 30247 that divides 30247 without a remainder.

1, 7, 29, 149, 203, 1043, 4321

Step-4: Factors of 30261

List of positive integer factors of 30261 that divides 30247 without a remainder.

1, 3, 7, 11, 21, 33, 77, 131, 231, 393, 917, 1441, 2751, 4323, 10087

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30247 and 30261. The biggest common factor number is the GCF number.
So the greatest common factor 30247 and 30261 is 7.

Also check out the Least Common Multiple of 30247 and 30261