What is the Greatest Common Factor of 81244 and 81263?

Greatest common factor (GCF) of 81244 and 81263 is 19.

GCF(81244,81263) = 19

We will now calculate the prime factors of 81244 and 81263, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81244 and 81263.

How to find the GCF of 81244 and 81263?

We will first find the prime factorization of 81244 and 81263. After we will calculate the factors of 81244 and 81263 and find the biggest common factor number .

Step-1: Prime Factorization of 81244

Prime factors of 81244 are 2, 19, 1069. Prime factorization of 81244 in exponential form is:

81244 = 2² × 19¹ × 1069¹

Step-2: Prime Factorization of 81263

Prime factors of 81263 are 7, 13, 19, 47. Prime factorization of 81263 in exponential form is:

81263 = 7¹ × 13¹ × 19¹ × 47¹

Step-3: Factors of 81244

List of positive integer factors of 81244 that divides 81244 without a remainder.

1, 2, 4, 19, 38, 76, 1069, 2138, 4276, 20311, 40622

Step-4: Factors of 81263

List of positive integer factors of 81263 that divides 81244 without a remainder.

1, 7, 13, 19, 47, 91, 133, 247, 329, 611, 893, 1729, 4277, 6251, 11609

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81244 and 81263. The biggest common factor number is the GCF number.
So the greatest common factor 81244 and 81263 is 19.

Also check out the Least Common Multiple of 81244 and 81263