What is the Greatest Common Factor of 82156 and 82170?

Greatest common factor (GCF) of 82156 and 82170 is 2.

GCF(82156,82170) = 2

We will now calculate the prime factors of 82156 and 82170, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 82156 and 82170.

How to find the GCF of 82156 and 82170?

We will first find the prime factorization of 82156 and 82170. After we will calculate the factors of 82156 and 82170 and find the biggest common factor number .

Step-1: Prime Factorization of 82156

Prime factors of 82156 are 2, 19, 23, 47. Prime factorization of 82156 in exponential form is:

82156 = 2² × 19¹ × 23¹ × 47¹

Step-2: Prime Factorization of 82170

Prime factors of 82170 are 2, 3, 5, 11, 83. Prime factorization of 82170 in exponential form is:

82170 = 2¹ × 3² × 5¹ × 11¹ × 83¹

Step-3: Factors of 82156

List of positive integer factors of 82156 that divides 82156 without a remainder.

1, 2, 4, 19, 23, 38, 46, 47, 76, 92, 94, 188, 437, 874, 893, 1081, 1748, 1786, 2162, 3572, 4324, 20539, 41078

Step-4: Factors of 82170

List of positive integer factors of 82170 that divides 82156 without a remainder.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 83, 90, 99, 110, 165, 166, 198, 249, 330, 415, 495, 498, 747, 830, 913, 990, 1245, 1494, 1826, 2490, 2739, 3735, 4565, 5478, 7470, 8217, 9130, 13695, 16434, 27390, 41085

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 82156 and 82170. The biggest common factor number is the GCF number.
So the greatest common factor 82156 and 82170 is 2.

Also check out the Least Common Multiple of 82156 and 82170