What is the Greatest Common Factor of 71561 and 71581?

Greatest common factor (GCF) of 71561 and 71581 is 1.

GCF(71561,71581) = 1

We will now calculate the prime factors of 71561 and 71581, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71561 and 71581.

How to find the GCF of 71561 and 71581?

We will first find the prime factorization of 71561 and 71581. After we will calculate the factors of 71561 and 71581 and find the biggest common factor number .

Step-1: Prime Factorization of 71561

Prime factors of 71561 are 7, 10223. Prime factorization of 71561 in exponential form is:

71561 = 7¹ × 10223¹

Step-2: Prime Factorization of 71581

Prime factors of 71581 are 47, 1523. Prime factorization of 71581 in exponential form is:

71581 = 47¹ × 1523¹

Step-3: Factors of 71561

List of positive integer factors of 71561 that divides 71561 without a remainder.

1, 7, 10223

Step-4: Factors of 71581

List of positive integer factors of 71581 that divides 71561 without a remainder.

1, 47, 1523

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71561 and 71581. The biggest common factor number is the GCF number.
So the greatest common factor 71561 and 71581 is 1.

Also check out the Least Common Multiple of 71561 and 71581