What is the Greatest Common Factor of 42104 and 42123?

Greatest common factor (GCF) of 42104 and 42123 is 19.

GCF(42104,42123) = 19

We will now calculate the prime factors of 42104 and 42123, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42104 and 42123.

How to find the GCF of 42104 and 42123?

We will first find the prime factorization of 42104 and 42123. After we will calculate the factors of 42104 and 42123 and find the biggest common factor number .

Step-1: Prime Factorization of 42104

Prime factors of 42104 are 2, 19, 277. Prime factorization of 42104 in exponential form is:

42104 = 2³ × 19¹ × 277¹

Step-2: Prime Factorization of 42123

Prime factors of 42123 are 3, 19, 739. Prime factorization of 42123 in exponential form is:

42123 = 3¹ × 19¹ × 739¹

Step-3: Factors of 42104

List of positive integer factors of 42104 that divides 42104 without a remainder.

1, 2, 4, 8, 19, 38, 76, 152, 277, 554, 1108, 2216, 5263, 10526, 21052

Step-4: Factors of 42123

List of positive integer factors of 42123 that divides 42104 without a remainder.

1, 3, 19, 57, 739, 2217, 14041

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42104 and 42123. The biggest common factor number is the GCF number.
So the greatest common factor 42104 and 42123 is 19.

Also check out the Least Common Multiple of 42104 and 42123