What is the Greatest Common Factor of 81211 and 81224?

Greatest common factor (GCF) of 81211 and 81224 is 13.

GCF(81211,81224) = 13

We will now calculate the prime factors of 81211 and 81224, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81211 and 81224.

How to find the GCF of 81211 and 81224?

We will first find the prime factorization of 81211 and 81224. After we will calculate the factors of 81211 and 81224 and find the biggest common factor number .

Step-1: Prime Factorization of 81211

Prime factors of 81211 are 13, 6247. Prime factorization of 81211 in exponential form is:

81211 = 13¹ × 6247¹

Step-2: Prime Factorization of 81224

Prime factors of 81224 are 2, 11, 13, 71. Prime factorization of 81224 in exponential form is:

81224 = 2³ × 11¹ × 13¹ × 71¹

Step-3: Factors of 81211

List of positive integer factors of 81211 that divides 81211 without a remainder.

1, 13, 6247

Step-4: Factors of 81224

List of positive integer factors of 81224 that divides 81211 without a remainder.

1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 71, 88, 104, 142, 143, 284, 286, 568, 572, 781, 923, 1144, 1562, 1846, 3124, 3692, 6248, 7384, 10153, 20306, 40612

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81211 and 81224. The biggest common factor number is the GCF number.
So the greatest common factor 81211 and 81224 is 13.

Also check out the Least Common Multiple of 81211 and 81224