What is the Greatest Common Factor of 71547 and 71561?

Greatest common factor (GCF) of 71547 and 71561 is 7.

GCF(71547,71561) = 7

We will now calculate the prime factors of 71547 and 71561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71547 and 71561.

How to find the GCF of 71547 and 71561?

We will first find the prime factorization of 71547 and 71561. After we will calculate the factors of 71547 and 71561 and find the biggest common factor number .

Step-1: Prime Factorization of 71547

Prime factors of 71547 are 3, 7, 3407. Prime factorization of 71547 in exponential form is:

71547 = 3¹ × 7¹ × 3407¹

Step-2: Prime Factorization of 71561

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

71561 = 7¹ × 10223¹

Step-3: Factors of 71547

List of positive integer factors of 71547 that divides 71547 without a remainder.

1, 3, 7, 21, 3407, 10221, 23849

Step-4: Factors of 71561

List of positive integer factors of 71561 that divides 71547 without a remainder.

1, 7, 10223

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71547 and 71561. The biggest common factor number is the GCF number.
So the greatest common factor 71547 and 71561 is 7.

Also check out the Least Common Multiple of 71547 and 71561