What is the Greatest Common Factor of 43555 and 43561?

Greatest common factor (GCF) of 43555 and 43561 is 1.

GCF(43555,43561) = 1

We will now calculate the prime factors of 43555 and 43561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43555 and 43561.

How to find the GCF of 43555 and 43561?

We will first find the prime factorization of 43555 and 43561. After we will calculate the factors of 43555 and 43561 and find the biggest common factor number .

Step-1: Prime Factorization of 43555

Prime factors of 43555 are 5, 31, 281. Prime factorization of 43555 in exponential form is:

43555 = 5¹ × 31¹ × 281¹

Step-2: Prime Factorization of 43561

Prime factors of 43561 are 7, 127. Prime factorization of 43561 in exponential form is:

43561 = 7³ × 127¹

Step-3: Factors of 43555

List of positive integer factors of 43555 that divides 43555 without a remainder.

1, 5, 31, 155, 281, 1405, 8711

Step-4: Factors of 43561

List of positive integer factors of 43561 that divides 43555 without a remainder.

1, 7, 49, 127, 343, 889, 6223

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43555 and 43561. The biggest common factor number is the GCF number.
So the greatest common factor 43555 and 43561 is 1.

Also check out the Least Common Multiple of 43555 and 43561