What is the Greatest Common Factor of 40338 and 40356?

Greatest common factor (GCF) of 40338 and 40356 is 18.

GCF(40338,40356) = 18

We will now calculate the prime factors of 40338 and 40356, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40338 and 40356.

How to find the GCF of 40338 and 40356?

We will first find the prime factorization of 40338 and 40356. After we will calculate the factors of 40338 and 40356 and find the biggest common factor number .

Step-1: Prime Factorization of 40338

Prime factors of 40338 are 2, 3, 83. Prime factorization of 40338 in exponential form is:

40338 = 2¹ × 3⁵ × 83¹

Step-2: Prime Factorization of 40356

Prime factors of 40356 are 2, 3, 19, 59. Prime factorization of 40356 in exponential form is:

40356 = 2² × 3² × 19¹ × 59¹

Step-3: Factors of 40338

List of positive integer factors of 40338 that divides 40338 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 81, 83, 162, 166, 243, 249, 486, 498, 747, 1494, 2241, 4482, 6723, 13446, 20169

Step-4: Factors of 40356

List of positive integer factors of 40356 that divides 40338 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 59, 76, 114, 118, 171, 177, 228, 236, 342, 354, 531, 684, 708, 1062, 1121, 2124, 2242, 3363, 4484, 6726, 10089, 13452, 20178

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40338 and 40356. The biggest common factor number is the GCF number.
So the greatest common factor 40338 and 40356 is 18.

Also check out the Least Common Multiple of 40338 and 40356