What is the Greatest Common Factor of 3685 and 3689?

Greatest common factor (GCF) of 3685 and 3689 is 1.

GCF(3685,3689) = 1

We will now calculate the prime factors of 3685 and 3689, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3685 and 3689.

How to find the GCF of 3685 and 3689?

We will first find the prime factorization of 3685 and 3689. After we will calculate the factors of 3685 and 3689 and find the biggest common factor number .

Step-1: Prime Factorization of 3685

Prime factors of 3685 are 5, 11, 67. Prime factorization of 3685 in exponential form is:

3685 = 5¹ × 11¹ × 67¹

Step-2: Prime Factorization of 3689

Prime factors of 3689 are 7, 17, 31. Prime factorization of 3689 in exponential form is:

3689 = 7¹ × 17¹ × 31¹

Step-3: Factors of 3685

List of positive integer factors of 3685 that divides 3685 without a remainder.

1, 5, 11, 55, 67, 335, 737

Step-4: Factors of 3689

List of positive integer factors of 3689 that divides 3685 without a remainder.

1, 7, 17, 31, 119, 217, 527

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3685 and 3689. The biggest common factor number is the GCF number.
So the greatest common factor 3685 and 3689 is 1.

Also check out the Least Common Multiple of 3685 and 3689