What is the Greatest Common Factor of 42290 and 42306?

Greatest common factor (GCF) of 42290 and 42306 is 2.

GCF(42290,42306) = 2

We will now calculate the prime factors of 42290 and 42306, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42290 and 42306.

How to find the GCF of 42290 and 42306?

We will first find the prime factorization of 42290 and 42306. After we will calculate the factors of 42290 and 42306 and find the biggest common factor number .

Step-1: Prime Factorization of 42290

Prime factors of 42290 are 2, 5, 4229. Prime factorization of 42290 in exponential form is:

42290 = 2¹ × 5¹ × 4229¹

Step-2: Prime Factorization of 42306

Prime factors of 42306 are 2, 3, 11, 641. Prime factorization of 42306 in exponential form is:

42306 = 2¹ × 3¹ × 11¹ × 641¹

Step-3: Factors of 42290

List of positive integer factors of 42290 that divides 42290 without a remainder.

1, 2, 5, 10, 4229, 8458, 21145

Step-4: Factors of 42306

List of positive integer factors of 42306 that divides 42290 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66, 641, 1282, 1923, 3846, 7051, 14102, 21153

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42290 and 42306. The biggest common factor number is the GCF number.
So the greatest common factor 42290 and 42306 is 2.

Also check out the Least Common Multiple of 42290 and 42306