What is the Greatest Common Factor of 5645 and 5649?

Greatest common factor (GCF) of 5645 and 5649 is 1.

GCF(5645,5649) = 1

We will now calculate the prime factors of 5645 and 5649, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 5645 and 5649.

How to find the GCF of 5645 and 5649?

We will first find the prime factorization of 5645 and 5649. After we will calculate the factors of 5645 and 5649 and find the biggest common factor number .

Step-1: Prime Factorization of 5645

Prime factors of 5645 are 5, 1129. Prime factorization of 5645 in exponential form is:

5645 = 5¹ × 1129¹

Step-2: Prime Factorization of 5649

Prime factors of 5649 are 3, 7, 269. Prime factorization of 5649 in exponential form is:

5649 = 3¹ × 7¹ × 269¹

Step-3: Factors of 5645

List of positive integer factors of 5645 that divides 5645 without a remainder.

1, 5, 1129

Step-4: Factors of 5649

List of positive integer factors of 5649 that divides 5645 without a remainder.

1, 3, 7, 21, 269, 807, 1883

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 5645 and 5649. The biggest common factor number is the GCF number.
So the greatest common factor 5645 and 5649 is 1.

Also check out the Least Common Multiple of 5645 and 5649