What is the Greatest Common Factor of 39921 and 39938?

Greatest common factor (GCF) of 39921 and 39938 is 1.

GCF(39921,39938) = 1

We will now calculate the prime factors of 39921 and 39938, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39921 and 39938.

How to find the GCF of 39921 and 39938?

We will first find the prime factorization of 39921 and 39938. After we will calculate the factors of 39921 and 39938 and find the biggest common factor number .

Step-1: Prime Factorization of 39921

Prime factors of 39921 are 3, 7, 1901. Prime factorization of 39921 in exponential form is:

39921 = 3¹ × 7¹ × 1901¹

Step-2: Prime Factorization of 39938

Prime factors of 39938 are 2, 19, 1051. Prime factorization of 39938 in exponential form is:

39938 = 2¹ × 19¹ × 1051¹

Step-3: Factors of 39921

List of positive integer factors of 39921 that divides 39921 without a remainder.

1, 3, 7, 21, 1901, 5703, 13307

Step-4: Factors of 39938

List of positive integer factors of 39938 that divides 39921 without a remainder.

1, 2, 19, 38, 1051, 2102, 19969

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39921 and 39938. The biggest common factor number is the GCF number.
So the greatest common factor 39921 and 39938 is 1.

Also check out the Least Common Multiple of 39921 and 39938