What is the Greatest Common Factor of 81018 and 81028?

Greatest common factor (GCF) of 81018 and 81028 is 2.

GCF(81018,81028) = 2

We will now calculate the prime factors of 81018 and 81028, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81018 and 81028.

How to find the GCF of 81018 and 81028?

We will first find the prime factorization of 81018 and 81028. After we will calculate the factors of 81018 and 81028 and find the biggest common factor number .

Step-1: Prime Factorization of 81018

Prime factors of 81018 are 2, 3, 7, 643. Prime factorization of 81018 in exponential form is:

81018 = 2¹ × 3² × 7¹ × 643¹

Step-2: Prime Factorization of 81028

Prime factors of 81028 are 2, 47, 431. Prime factorization of 81028 in exponential form is:

81028 = 2² × 47¹ × 431¹

Step-3: Factors of 81018

List of positive integer factors of 81018 that divides 81018 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 643, 1286, 1929, 3858, 4501, 5787, 9002, 11574, 13503, 27006, 40509

Step-4: Factors of 81028

List of positive integer factors of 81028 that divides 81018 without a remainder.

1, 2, 4, 47, 94, 188, 431, 862, 1724, 20257, 40514

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81018 and 81028. The biggest common factor number is the GCF number.
So the greatest common factor 81018 and 81028 is 2.

Also check out the Least Common Multiple of 81018 and 81028