What is the Greatest Common Factor of 40685 and 40689?

Greatest common factor (GCF) of 40685 and 40689 is 1.

GCF(40685,40689) = 1

We will now calculate the prime factors of 40685 and 40689, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40685 and 40689.

How to find the GCF of 40685 and 40689?

We will first find the prime factorization of 40685 and 40689. After we will calculate the factors of 40685 and 40689 and find the biggest common factor number .

Step-1: Prime Factorization of 40685

Prime factors of 40685 are 5, 79, 103. Prime factorization of 40685 in exponential form is:

40685 = 5¹ × 79¹ × 103¹

Step-2: Prime Factorization of 40689

Prime factors of 40689 are 3, 11, 137. Prime factorization of 40689 in exponential form is:

40689 = 3³ × 11¹ × 137¹

Step-3: Factors of 40685

List of positive integer factors of 40685 that divides 40685 without a remainder.

1, 5, 79, 103, 395, 515, 8137

Step-4: Factors of 40689

List of positive integer factors of 40689 that divides 40685 without a remainder.

1, 3, 9, 11, 27, 33, 99, 137, 297, 411, 1233, 1507, 3699, 4521, 13563

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40685 and 40689. The biggest common factor number is the GCF number.
So the greatest common factor 40685 and 40689 is 1.

Also check out the Least Common Multiple of 40685 and 40689