What is the Greatest Common Factor of 81010 and 81015?

Greatest common factor (GCF) of 81010 and 81015 is 5.

GCF(81010,81015) = 5

We will now calculate the prime factors of 81010 and 81015, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81010 and 81015.

How to find the GCF of 81010 and 81015?

We will first find the prime factorization of 81010 and 81015. After we will calculate the factors of 81010 and 81015 and find the biggest common factor number .

Step-1: Prime Factorization of 81010

Prime factors of 81010 are 2, 5, 8101. Prime factorization of 81010 in exponential form is:

81010 = 2¹ × 5¹ × 8101¹

Step-2: Prime Factorization of 81015

Prime factors of 81015 are 3, 5, 11, 491. Prime factorization of 81015 in exponential form is:

81015 = 3¹ × 5¹ × 11¹ × 491¹

Step-3: Factors of 81010

List of positive integer factors of 81010 that divides 81010 without a remainder.

1, 2, 5, 10, 8101, 16202, 40505

Step-4: Factors of 81015

List of positive integer factors of 81015 that divides 81010 without a remainder.

1, 3, 5, 11, 15, 33, 55, 165, 491, 1473, 2455, 5401, 7365, 16203, 27005

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81010 and 81015. The biggest common factor number is the GCF number.
So the greatest common factor 81010 and 81015 is 5.

Also check out the Least Common Multiple of 81010 and 81015