What is the Greatest Common Factor of 67990 and 68008?

Greatest common factor (GCF) of 67990 and 68008 is 2.

GCF(67990,68008) = 2

We will now calculate the prime factors of 67990 and 68008, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67990 and 68008.

How to find the GCF of 67990 and 68008?

We will first find the prime factorization of 67990 and 68008. After we will calculate the factors of 67990 and 68008 and find the biggest common factor number .

Step-1: Prime Factorization of 67990

Prime factors of 67990 are 2, 5, 13, 523. Prime factorization of 67990 in exponential form is:

67990 = 2¹ × 5¹ × 13¹ × 523¹

Step-2: Prime Factorization of 68008

Prime factors of 68008 are 2, 8501. Prime factorization of 68008 in exponential form is:

68008 = 2³ × 8501¹

Step-3: Factors of 67990

List of positive integer factors of 67990 that divides 67990 without a remainder.

1, 2, 5, 10, 13, 26, 65, 130, 523, 1046, 2615, 5230, 6799, 13598, 33995

Step-4: Factors of 68008

List of positive integer factors of 68008 that divides 67990 without a remainder.

1, 2, 4, 8, 8501, 17002, 34004

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67990 and 68008. The biggest common factor number is the GCF number.
So the greatest common factor 67990 and 68008 is 2.

Also check out the Least Common Multiple of 67990 and 68008