What is the Greatest Common Factor of 42618 and 42630?

Greatest common factor (GCF) of 42618 and 42630 is 6.

GCF(42618,42630) = 6

We will now calculate the prime factors of 42618 and 42630, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42618 and 42630.

How to find the GCF of 42618 and 42630?

We will first find the prime factorization of 42618 and 42630. After we will calculate the factors of 42618 and 42630 and find the biggest common factor number .

Step-1: Prime Factorization of 42618

Prime factors of 42618 are 2, 3, 7103. Prime factorization of 42618 in exponential form is:

42618 = 2¹ × 3¹ × 7103¹

Step-2: Prime Factorization of 42630

Prime factors of 42630 are 2, 3, 5, 7, 29. Prime factorization of 42630 in exponential form is:

42630 = 2¹ × 3¹ × 5¹ × 7² × 29¹

Step-3: Factors of 42618

List of positive integer factors of 42618 that divides 42618 without a remainder.

1, 2, 3, 6, 7103, 14206, 21309

Step-4: Factors of 42630

List of positive integer factors of 42630 that divides 42618 without a remainder.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 49, 58, 70, 87, 98, 105, 145, 147, 174, 203, 210, 245, 290, 294, 406, 435, 490, 609, 735, 870, 1015, 1218, 1421, 1470, 2030, 2842, 3045, 4263, 6090, 7105, 8526, 14210, 21315

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42618 and 42630. The biggest common factor number is the GCF number.
So the greatest common factor 42618 and 42630 is 6.

Also check out the Least Common Multiple of 42618 and 42630