What is the Greatest Common Factor of 77836 and 77840?

Greatest common factor (GCF) of 77836 and 77840 is 4.

GCF(77836,77840) = 4

We will now calculate the prime factors of 77836 and 77840, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77836 and 77840.

How to find the GCF of 77836 and 77840?

We will first find the prime factorization of 77836 and 77840. After we will calculate the factors of 77836 and 77840 and find the biggest common factor number .

Step-1: Prime Factorization of 77836

Prime factors of 77836 are 2, 11, 29, 61. Prime factorization of 77836 in exponential form is:

77836 = 2² × 11¹ × 29¹ × 61¹

Step-2: Prime Factorization of 77840

Prime factors of 77840 are 2, 5, 7, 139. Prime factorization of 77840 in exponential form is:

77840 = 2⁴ × 5¹ × 7¹ × 139¹

Step-3: Factors of 77836

List of positive integer factors of 77836 that divides 77836 without a remainder.

1, 2, 4, 11, 22, 29, 44, 58, 61, 116, 122, 244, 319, 638, 671, 1276, 1342, 1769, 2684, 3538, 7076, 19459, 38918

Step-4: Factors of 77840

List of positive integer factors of 77840 that divides 77836 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1112, 1390, 1946, 2224, 2780, 3892, 4865, 5560, 7784, 9730, 11120, 15568, 19460, 38920

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77836 and 77840. The biggest common factor number is the GCF number.
So the greatest common factor 77836 and 77840 is 4.

Also check out the Least Common Multiple of 77836 and 77840