What is the Greatest Common Factor of 38642 and 38661?

Greatest common factor (GCF) of 38642 and 38661 is 1.

GCF(38642,38661) = 1

We will now calculate the prime factors of 38642 and 38661, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38642 and 38661.

How to find the GCF of 38642 and 38661?

We will first find the prime factorization of 38642 and 38661. After we will calculate the factors of 38642 and 38661 and find the biggest common factor number .

Step-1: Prime Factorization of 38642

Prime factors of 38642 are 2, 139. Prime factorization of 38642 in exponential form is:

38642 = 2¹ × 139²

Step-2: Prime Factorization of 38661

Prime factors of 38661 are 3, 7, 263. Prime factorization of 38661 in exponential form is:

38661 = 3¹ × 7² × 263¹

Step-3: Factors of 38642

List of positive integer factors of 38642 that divides 38642 without a remainder.

1, 2, 139, 278, 19321

Step-4: Factors of 38661

List of positive integer factors of 38661 that divides 38642 without a remainder.

1, 3, 7, 21, 49, 147, 263, 789, 1841, 5523, 12887

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38642 and 38661. The biggest common factor number is the GCF number.
So the greatest common factor 38642 and 38661 is 1.

Also check out the Least Common Multiple of 38642 and 38661