What is the Greatest Common Factor of 66990 and 66995?

Greatest common factor (GCF) of 66990 and 66995 is 5.

GCF(66990,66995) = 5

We will now calculate the prime factors of 66990 and 66995, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66990 and 66995.

How to find the GCF of 66990 and 66995?

We will first find the prime factorization of 66990 and 66995. After we will calculate the factors of 66990 and 66995 and find the biggest common factor number .

Step-1: Prime Factorization of 66990

Prime factors of 66990 are 2, 3, 5, 7, 11, 29. Prime factorization of 66990 in exponential form is:

66990 = 2¹ × 3¹ × 5¹ × 7¹ × 11¹ × 29¹

Step-2: Prime Factorization of 66995

Prime factors of 66995 are 5, 13399. Prime factorization of 66995 in exponential form is:

66995 = 5¹ × 13399¹

Step-3: Factors of 66990

List of positive integer factors of 66990 that divides 66990 without a remainder.

1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 29, 30, 33, 35, 42, 55, 58, 66, 70, 77, 87, 105, 110, 145, 154, 165, 174, 203, 210, 231, 290, 319, 330, 385, 406, 435, 462, 609, 638, 770, 870, 957, 1015, 1155, 1218, 1595, 1914, 2030, 2233, 2310, 3045, 3190, 4466, 4785, 6090, 6699, 9570, 11165, 13398, 22330, 33495

Step-4: Factors of 66995

List of positive integer factors of 66995 that divides 66990 without a remainder.

1, 5, 13399

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66990 and 66995. The biggest common factor number is the GCF number.
So the greatest common factor 66990 and 66995 is 5.

Also check out the Least Common Multiple of 66990 and 66995