What is the Greatest Common Factor of 91140 and 91160?

Greatest common factor (GCF) of 91140 and 91160 is 20.

GCF(91140,91160) = 20

We will now calculate the prime factors of 91140 and 91160, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91140 and 91160.

How to find the GCF of 91140 and 91160?

We will first find the prime factorization of 91140 and 91160. After we will calculate the factors of 91140 and 91160 and find the biggest common factor number .

Step-1: Prime Factorization of 91140

Prime factors of 91140 are 2, 3, 5, 7, 31. Prime factorization of 91140 in exponential form is:

91140 = 2² × 3¹ × 5¹ × 7² × 31¹

Step-2: Prime Factorization of 91160

Prime factors of 91160 are 2, 5, 43, 53. Prime factorization of 91160 in exponential form is:

91160 = 2³ × 5¹ × 43¹ × 53¹

Step-3: Factors of 91140

List of positive integer factors of 91140 that divides 91140 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 372, 420, 434, 465, 490, 588, 620, 651, 735, 868, 930, 980, 1085, 1302, 1470, 1519, 1860, 2170, 2604, 2940, 3038, 3255, 4340, 4557, 6076, 6510, 7595, 9114, 13020, 15190, 18228, 22785, 30380, 45570

Step-4: Factors of 91160

List of positive integer factors of 91160 that divides 91140 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 860, 1060, 1720, 2120, 2279, 4558, 9116, 11395, 18232, 22790, 45580

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91140 and 91160. The biggest common factor number is the GCF number.
So the greatest common factor 91140 and 91160 is 20.

Also check out the Least Common Multiple of 91140 and 91160