What is the Greatest Common Factor of 81090 and 81109?

Greatest common factor (GCF) of 81090 and 81109 is 1.

GCF(81090,81109) = 1

We will now calculate the prime factors of 81090 and 81109, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81090 and 81109.

How to find the GCF of 81090 and 81109?

We will first find the prime factorization of 81090 and 81109. After we will calculate the factors of 81090 and 81109 and find the biggest common factor number .

Step-1: Prime Factorization of 81090

Prime factors of 81090 are 2, 3, 5, 17, 53. Prime factorization of 81090 in exponential form is:

81090 = 2¹ × 3² × 5¹ × 17¹ × 53¹

Step-2: Prime Factorization of 81109

Prime factors of 81109 are 7, 11587. Prime factorization of 81109 in exponential form is:

81109 = 7¹ × 11587¹

Step-3: Factors of 81090

List of positive integer factors of 81090 that divides 81090 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 53, 85, 90, 102, 106, 153, 159, 170, 255, 265, 306, 318, 477, 510, 530, 765, 795, 901, 954, 1530, 1590, 1802, 2385, 2703, 4505, 4770, 5406, 8109, 9010, 13515, 16218, 27030, 40545

Step-4: Factors of 81109

List of positive integer factors of 81109 that divides 81090 without a remainder.

1, 7, 11587

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81090 and 81109. The biggest common factor number is the GCF number.
So the greatest common factor 81090 and 81109 is 1.

Also check out the Least Common Multiple of 81090 and 81109