What is the Greatest Common Factor of 68535 and 68540?

Greatest common factor (GCF) of 68535 and 68540 is 5.

GCF(68535,68540) = 5

We will now calculate the prime factors of 68535 and 68540, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68535 and 68540.

How to find the GCF of 68535 and 68540?

We will first find the prime factorization of 68535 and 68540. After we will calculate the factors of 68535 and 68540 and find the biggest common factor number .

Step-1: Prime Factorization of 68535

Prime factors of 68535 are 3, 5, 1523. Prime factorization of 68535 in exponential form is:

68535 = 3² × 5¹ × 1523¹

Step-2: Prime Factorization of 68540

Prime factors of 68540 are 2, 5, 23, 149. Prime factorization of 68540 in exponential form is:

68540 = 2² × 5¹ × 23¹ × 149¹

Step-3: Factors of 68535

List of positive integer factors of 68535 that divides 68535 without a remainder.

1, 3, 5, 9, 15, 45, 1523, 4569, 7615, 13707, 22845

Step-4: Factors of 68540

List of positive integer factors of 68540 that divides 68535 without a remainder.

1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 298, 460, 596, 745, 1490, 2980, 3427, 6854, 13708, 17135, 34270

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68535 and 68540. The biggest common factor number is the GCF number.
So the greatest common factor 68535 and 68540 is 5.

Also check out the Least Common Multiple of 68535 and 68540