What is the Greatest Common Factor of 78162 and 78170?

Greatest common factor (GCF) of 78162 and 78170 is 2.

GCF(78162,78170) = 2

We will now calculate the prime factors of 78162 and 78170, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78162 and 78170.

How to find the GCF of 78162 and 78170?

We will first find the prime factorization of 78162 and 78170. After we will calculate the factors of 78162 and 78170 and find the biggest common factor number .

Step-1: Prime Factorization of 78162

Prime factors of 78162 are 2, 3, 7, 1861. Prime factorization of 78162 in exponential form is:

78162 = 2¹ × 3¹ × 7¹ × 1861¹

Step-2: Prime Factorization of 78170

Prime factors of 78170 are 2, 5, 7817. Prime factorization of 78170 in exponential form is:

78170 = 2¹ × 5¹ × 7817¹

Step-3: Factors of 78162

List of positive integer factors of 78162 that divides 78162 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 1861, 3722, 5583, 11166, 13027, 26054, 39081

Step-4: Factors of 78170

List of positive integer factors of 78170 that divides 78162 without a remainder.

1, 2, 5, 10, 7817, 15634, 39085

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78162 and 78170. The biggest common factor number is the GCF number.
So the greatest common factor 78162 and 78170 is 2.

Also check out the Least Common Multiple of 78162 and 78170