What is the Greatest Common Factor of 42660 and 42666?

Greatest common factor (GCF) of 42660 and 42666 is 6.

GCF(42660,42666) = 6

We will now calculate the prime factors of 42660 and 42666, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42660 and 42666.

How to find the GCF of 42660 and 42666?

We will first find the prime factorization of 42660 and 42666. After we will calculate the factors of 42660 and 42666 and find the biggest common factor number .

Step-1: Prime Factorization of 42660

Prime factors of 42660 are 2, 3, 5, 79. Prime factorization of 42660 in exponential form is:

42660 = 2² × 3³ × 5¹ × 79¹

Step-2: Prime Factorization of 42666

Prime factors of 42666 are 2, 3, 13, 547. Prime factorization of 42666 in exponential form is:

42666 = 2¹ × 3¹ × 13¹ × 547¹

Step-3: Factors of 42660

List of positive integer factors of 42660 that divides 42660 without a remainder.

1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 90, 108, 135, 158, 180, 237, 270, 316, 395, 474, 540, 711, 790, 948, 1185, 1422, 1580, 2133, 2370, 2844, 3555, 4266, 4740, 7110, 8532, 10665, 14220, 21330

Step-4: Factors of 42666

List of positive integer factors of 42666 that divides 42660 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78, 547, 1094, 1641, 3282, 7111, 14222, 21333

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42660 and 42666. The biggest common factor number is the GCF number.
So the greatest common factor 42660 and 42666 is 6.

Also check out the Least Common Multiple of 42660 and 42666