What is the Greatest Common Factor of 81310 and 81320?

Greatest common factor (GCF) of 81310 and 81320 is 10.

GCF(81310,81320) = 10

We will now calculate the prime factors of 81310 and 81320, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81310 and 81320.

How to find the GCF of 81310 and 81320?

We will first find the prime factorization of 81310 and 81320. After we will calculate the factors of 81310 and 81320 and find the biggest common factor number .

Step-1: Prime Factorization of 81310

Prime factors of 81310 are 2, 5, 47, 173. Prime factorization of 81310 in exponential form is:

81310 = 2¹ × 5¹ × 47¹ × 173¹

Step-2: Prime Factorization of 81320

Prime factors of 81320 are 2, 5, 19, 107. Prime factorization of 81320 in exponential form is:

81320 = 2³ × 5¹ × 19¹ × 107¹

Step-3: Factors of 81310

List of positive integer factors of 81310 that divides 81310 without a remainder.

1, 2, 5, 10, 47, 94, 173, 235, 346, 470, 865, 1730, 8131, 16262, 40655

Step-4: Factors of 81320

List of positive integer factors of 81320 that divides 81310 without a remainder.

1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 214, 380, 428, 535, 760, 856, 1070, 2033, 2140, 4066, 4280, 8132, 10165, 16264, 20330, 40660

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81310 and 81320. The biggest common factor number is the GCF number.
So the greatest common factor 81310 and 81320 is 10.

Also check out the Least Common Multiple of 81310 and 81320