What is the Greatest Common Factor of 19738 and 19745?

Greatest common factor (GCF) of 19738 and 19745 is 1.

GCF(19738,19745) = 1

We will now calculate the prime factors of 19738 and 19745, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19738 and 19745.

How to find the GCF of 19738 and 19745?

We will first find the prime factorization of 19738 and 19745. After we will calculate the factors of 19738 and 19745 and find the biggest common factor number .

Step-1: Prime Factorization of 19738

Prime factors of 19738 are 2, 71, 139. Prime factorization of 19738 in exponential form is:

19738 = 2¹ × 71¹ × 139¹

Step-2: Prime Factorization of 19745

Prime factors of 19745 are 5, 11, 359. Prime factorization of 19745 in exponential form is:

19745 = 5¹ × 11¹ × 359¹

Step-3: Factors of 19738

List of positive integer factors of 19738 that divides 19738 without a remainder.

1, 2, 71, 139, 142, 278, 9869

Step-4: Factors of 19745

List of positive integer factors of 19745 that divides 19738 without a remainder.

1, 5, 11, 55, 359, 1795, 3949

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19738 and 19745. The biggest common factor number is the GCF number.
So the greatest common factor 19738 and 19745 is 1.

Also check out the Least Common Multiple of 19738 and 19745