What is the Greatest Common Factor of 20138 and 20148?

Greatest common factor (GCF) of 20138 and 20148 is 2.

GCF(20138,20148) = 2

We will now calculate the prime factors of 20138 and 20148, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20138 and 20148.

How to find the GCF of 20138 and 20148?

We will first find the prime factorization of 20138 and 20148. After we will calculate the factors of 20138 and 20148 and find the biggest common factor number .

Step-1: Prime Factorization of 20138

Prime factors of 20138 are 2, 10069. Prime factorization of 20138 in exponential form is:

20138 = 2¹ × 10069¹

Step-2: Prime Factorization of 20148

Prime factors of 20148 are 2, 3, 23, 73. Prime factorization of 20148 in exponential form is:

20148 = 2² × 3¹ × 23¹ × 73¹

Step-3: Factors of 20138

List of positive integer factors of 20138 that divides 20138 without a remainder.

1, 2, 10069

Step-4: Factors of 20148

List of positive integer factors of 20148 that divides 20138 without a remainder.

1, 2, 3, 4, 6, 12, 23, 46, 69, 73, 92, 138, 146, 219, 276, 292, 438, 876, 1679, 3358, 5037, 6716, 10074

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20138 and 20148. The biggest common factor number is the GCF number.
So the greatest common factor 20138 and 20148 is 2.

Also check out the Least Common Multiple of 20138 and 20148