What is the Greatest Common Factor of 40728 and 40740?

Greatest common factor (GCF) of 40728 and 40740 is 12.

GCF(40728,40740) = 12

We will now calculate the prime factors of 40728 and 40740, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40728 and 40740.

How to find the GCF of 40728 and 40740?

We will first find the prime factorization of 40728 and 40740. After we will calculate the factors of 40728 and 40740 and find the biggest common factor number .

Step-1: Prime Factorization of 40728

Prime factors of 40728 are 2, 3, 1697. Prime factorization of 40728 in exponential form is:

40728 = 2³ × 3¹ × 1697¹

Step-2: Prime Factorization of 40740

Prime factors of 40740 are 2, 3, 5, 7, 97. Prime factorization of 40740 in exponential form is:

40740 = 2² × 3¹ × 5¹ × 7¹ × 97¹

Step-3: Factors of 40728

List of positive integer factors of 40728 that divides 40728 without a remainder.

1, 2, 3, 4, 6, 8, 12, 24, 1697, 3394, 5091, 6788, 10182, 13576, 20364

Step-4: Factors of 40740

List of positive integer factors of 40740 that divides 40728 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 97, 105, 140, 194, 210, 291, 388, 420, 485, 582, 679, 970, 1164, 1358, 1455, 1940, 2037, 2716, 2910, 3395, 4074, 5820, 6790, 8148, 10185, 13580, 20370

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40728 and 40740. The biggest common factor number is the GCF number.
So the greatest common factor 40728 and 40740 is 12.

Also check out the Least Common Multiple of 40728 and 40740