What is the Greatest Common Factor of 77842 and 77855?

Greatest common factor (GCF) of 77842 and 77855 is 1.

GCF(77842,77855) = 1

We will now calculate the prime factors of 77842 and 77855, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77842 and 77855.

How to find the GCF of 77842 and 77855?

We will first find the prime factorization of 77842 and 77855. After we will calculate the factors of 77842 and 77855 and find the biggest common factor number .

Step-1: Prime Factorization of 77842

Prime factors of 77842 are 2, 38921. Prime factorization of 77842 in exponential form is:

77842 = 2¹ × 38921¹

Step-2: Prime Factorization of 77855

Prime factors of 77855 are 5, 23, 677. Prime factorization of 77855 in exponential form is:

77855 = 5¹ × 23¹ × 677¹

Step-3: Factors of 77842

List of positive integer factors of 77842 that divides 77842 without a remainder.

1, 2, 38921

Step-4: Factors of 77855

List of positive integer factors of 77855 that divides 77842 without a remainder.

1, 5, 23, 115, 677, 3385, 15571

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77842 and 77855. The biggest common factor number is the GCF number.
So the greatest common factor 77842 and 77855 is 1.

Also check out the Least Common Multiple of 77842 and 77855