What is the Greatest Common Factor of 91400 and 91408?

Greatest common factor (GCF) of 91400 and 91408 is 8.

GCF(91400,91408) = 8

We will now calculate the prime factors of 91400 and 91408, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 91400 and 91408.

How to find the GCF of 91400 and 91408?

We will first find the prime factorization of 91400 and 91408. After we will calculate the factors of 91400 and 91408 and find the biggest common factor number .

Step-1: Prime Factorization of 91400

Prime factors of 91400 are 2, 5, 457. Prime factorization of 91400 in exponential form is:

91400 = 2³ × 5² × 457¹

Step-2: Prime Factorization of 91408

Prime factors of 91408 are 2, 29, 197. Prime factorization of 91408 in exponential form is:

91408 = 2⁴ × 29¹ × 197¹

Step-3: Factors of 91400

List of positive integer factors of 91400 that divides 91400 without a remainder.

1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 457, 914, 1828, 2285, 3656, 4570, 9140, 11425, 18280, 22850, 45700

Step-4: Factors of 91408

List of positive integer factors of 91408 that divides 91400 without a remainder.

1, 2, 4, 8, 16, 29, 58, 116, 197, 232, 394, 464, 788, 1576, 3152, 5713, 11426, 22852, 45704

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 91400 and 91408. The biggest common factor number is the GCF number.
So the greatest common factor 91400 and 91408 is 8.

Also check out the Least Common Multiple of 91400 and 91408