What is the Greatest Common Factor of 68855 and 68870?

Greatest common factor (GCF) of 68855 and 68870 is 5.

GCF(68855,68870) = 5

We will now calculate the prime factors of 68855 and 68870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68855 and 68870.

How to find the GCF of 68855 and 68870?

We will first find the prime factorization of 68855 and 68870. After we will calculate the factors of 68855 and 68870 and find the biggest common factor number .

Step-1: Prime Factorization of 68855

Prime factors of 68855 are 5, 47, 293. Prime factorization of 68855 in exponential form is:

68855 = 5¹ × 47¹ × 293¹

Step-2: Prime Factorization of 68870

Prime factors of 68870 are 2, 5, 71, 97. Prime factorization of 68870 in exponential form is:

68870 = 2¹ × 5¹ × 71¹ × 97¹

Step-3: Factors of 68855

List of positive integer factors of 68855 that divides 68855 without a remainder.

1, 5, 47, 235, 293, 1465, 13771

Step-4: Factors of 68870

List of positive integer factors of 68870 that divides 68855 without a remainder.

1, 2, 5, 10, 71, 97, 142, 194, 355, 485, 710, 970, 6887, 13774, 34435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68855 and 68870. The biggest common factor number is the GCF number.
So the greatest common factor 68855 and 68870 is 5.

Also check out the Least Common Multiple of 68855 and 68870