What is the Greatest Common Factor of 11705 and 11720?

Greatest common factor (GCF) of 11705 and 11720 is 5.

GCF(11705,11720) = 5

We will now calculate the prime factors of 11705 and 11720, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11705 and 11720.

How to find the GCF of 11705 and 11720?

We will first find the prime factorization of 11705 and 11720. After we will calculate the factors of 11705 and 11720 and find the biggest common factor number .

Step-1: Prime Factorization of 11705

Prime factors of 11705 are 5, 2341. Prime factorization of 11705 in exponential form is:

11705 = 5¹ × 2341¹

Step-2: Prime Factorization of 11720

Prime factors of 11720 are 2, 5, 293. Prime factorization of 11720 in exponential form is:

11720 = 2³ × 5¹ × 293¹

Step-3: Factors of 11705

List of positive integer factors of 11705 that divides 11705 without a remainder.

1, 5, 2341

Step-4: Factors of 11720

List of positive integer factors of 11720 that divides 11705 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2930, 5860

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11705 and 11720. The biggest common factor number is the GCF number.
So the greatest common factor 11705 and 11720 is 5.

Also check out the Least Common Multiple of 11705 and 11720