What is the Greatest Common Factor of 39711 and 39721?

Greatest common factor (GCF) of 39711 and 39721 is 1.

GCF(39711,39721) = 1

We will now calculate the prime factors of 39711 and 39721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39711 and 39721.

How to find the GCF of 39711 and 39721?

We will first find the prime factorization of 39711 and 39721. After we will calculate the factors of 39711 and 39721 and find the biggest common factor number .

Step-1: Prime Factorization of 39711

Prime factors of 39711 are 3, 7, 31, 61. Prime factorization of 39711 in exponential form is:

39711 = 3¹ × 7¹ × 31¹ × 61¹

Step-2: Prime Factorization of 39721

Prime factors of 39721 are 11, 23, 157. Prime factorization of 39721 in exponential form is:

39721 = 11¹ × 23¹ × 157¹

Step-3: Factors of 39711

List of positive integer factors of 39711 that divides 39711 without a remainder.

1, 3, 7, 21, 31, 61, 93, 183, 217, 427, 651, 1281, 1891, 5673, 13237

Step-4: Factors of 39721

List of positive integer factors of 39721 that divides 39711 without a remainder.

1, 11, 23, 157, 253, 1727, 3611

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39711 and 39721. The biggest common factor number is the GCF number.
So the greatest common factor 39711 and 39721 is 1.

Also check out the Least Common Multiple of 39711 and 39721