What is the Greatest Common Factor of 81263 and 81282?

Greatest common factor (GCF) of 81263 and 81282 is 19.

GCF(81263,81282) = 19

We will now calculate the prime factors of 81263 and 81282, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81263 and 81282.

How to find the GCF of 81263 and 81282?

We will first find the prime factorization of 81263 and 81282. After we will calculate the factors of 81263 and 81282 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 81282

Prime factors of 81282 are 2, 3, 19, 23, 31. Prime factorization of 81282 in exponential form is:

81282 = 2¹ × 3¹ × 19¹ × 23¹ × 31¹

Step-3: Factors of 81263

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

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

Step-4: Factors of 81282

List of positive integer factors of 81282 that divides 81263 without a remainder.

1, 2, 3, 6, 19, 23, 31, 38, 46, 57, 62, 69, 93, 114, 138, 186, 437, 589, 713, 874, 1178, 1311, 1426, 1767, 2139, 2622, 3534, 4278, 13547, 27094, 40641

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81263 and 81282. The biggest common factor number is the GCF number.
So the greatest common factor 81263 and 81282 is 19.

Also check out the Least Common Multiple of 81263 and 81282