What is the Greatest Common Factor of 68970 and 68978?

Greatest common factor (GCF) of 68970 and 68978 is 2.

GCF(68970,68978) = 2

We will now calculate the prime factors of 68970 and 68978, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68970 and 68978.

How to find the GCF of 68970 and 68978?

We will first find the prime factorization of 68970 and 68978. After we will calculate the factors of 68970 and 68978 and find the biggest common factor number .

Step-1: Prime Factorization of 68970

Prime factors of 68970 are 2, 3, 5, 11, 19. Prime factorization of 68970 in exponential form is:

68970 = 2¹ × 3¹ × 5¹ × 11² × 19¹

Step-2: Prime Factorization of 68978

Prime factors of 68978 are 2, 7, 13, 379. Prime factorization of 68978 in exponential form is:

68978 = 2¹ × 7¹ × 13¹ × 379¹

Step-3: Factors of 68970

List of positive integer factors of 68970 that divides 68970 without a remainder.

1, 2, 3, 5, 6, 10, 11, 15, 19, 22, 30, 33, 38, 55, 57, 66, 95, 110, 114, 121, 165, 190, 209, 242, 285, 330, 363, 418, 570, 605, 627, 726, 1045, 1210, 1254, 1815, 2090, 2299, 3135, 3630, 4598, 6270, 6897, 11495, 13794, 22990, 34485

Step-4: Factors of 68978

List of positive integer factors of 68978 that divides 68970 without a remainder.

1, 2, 7, 13, 14, 26, 91, 182, 379, 758, 2653, 4927, 5306, 9854, 34489

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68970 and 68978. The biggest common factor number is the GCF number.
So the greatest common factor 68970 and 68978 is 2.

Also check out the Least Common Multiple of 68970 and 68978