What is the Greatest Common Factor of 81455 and 81460?

Greatest common factor (GCF) of 81455 and 81460 is 5.

GCF(81455,81460) = 5

We will now calculate the prime factors of 81455 and 81460, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81455 and 81460.

How to find the GCF of 81455 and 81460?

We will first find the prime factorization of 81455 and 81460. After we will calculate the factors of 81455 and 81460 and find the biggest common factor number .

Step-1: Prime Factorization of 81455

Prime factors of 81455 are 5, 11, 1481. Prime factorization of 81455 in exponential form is:

81455 = 5¹ × 11¹ × 1481¹

Step-2: Prime Factorization of 81460

Prime factors of 81460 are 2, 5, 4073. Prime factorization of 81460 in exponential form is:

81460 = 2² × 5¹ × 4073¹

Step-3: Factors of 81455

List of positive integer factors of 81455 that divides 81455 without a remainder.

1, 5, 11, 55, 1481, 7405, 16291

Step-4: Factors of 81460

List of positive integer factors of 81460 that divides 81455 without a remainder.

1, 2, 4, 5, 10, 20, 4073, 8146, 16292, 20365, 40730

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81455 and 81460. The biggest common factor number is the GCF number.
So the greatest common factor 81455 and 81460 is 5.

Also check out the Least Common Multiple of 81455 and 81460