What is the Greatest Common Factor of 81993 and 82008?

Greatest common factor (GCF) of 81993 and 82008 is 3.

GCF(81993,82008) = 3

We will now calculate the prime factors of 81993 and 82008, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81993 and 82008.

How to find the GCF of 81993 and 82008?

We will first find the prime factorization of 81993 and 82008. After we will calculate the factors of 81993 and 82008 and find the biggest common factor number .

Step-1: Prime Factorization of 81993

Prime factors of 81993 are 3, 151, 181. Prime factorization of 81993 in exponential form is:

81993 = 3¹ × 151¹ × 181¹

Step-2: Prime Factorization of 82008

Prime factors of 82008 are 2, 3, 17, 67. Prime factorization of 82008 in exponential form is:

82008 = 2³ × 3² × 17¹ × 67¹

Step-3: Factors of 81993

List of positive integer factors of 81993 that divides 81993 without a remainder.

1, 3, 151, 181, 453, 543, 27331

Step-4: Factors of 82008

List of positive integer factors of 82008 that divides 81993 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 67, 68, 72, 102, 134, 136, 153, 201, 204, 268, 306, 402, 408, 536, 603, 612, 804, 1139, 1206, 1224, 1608, 2278, 2412, 3417, 4556, 4824, 6834, 9112, 10251, 13668, 20502, 27336, 41004

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81993 and 82008. The biggest common factor number is the GCF number.
So the greatest common factor 81993 and 82008 is 3.

Also check out the Least Common Multiple of 81993 and 82008