What is the Greatest Common Factor of 78740 and 78749?

Greatest common factor (GCF) of 78740 and 78749 is 1.

GCF(78740,78749) = 1

We will now calculate the prime factors of 78740 and 78749, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78740 and 78749.

How to find the GCF of 78740 and 78749?

We will first find the prime factorization of 78740 and 78749. After we will calculate the factors of 78740 and 78749 and find the biggest common factor number .

Step-1: Prime Factorization of 78740

Prime factors of 78740 are 2, 5, 31, 127. Prime factorization of 78740 in exponential form is:

78740 = 2² × 5¹ × 31¹ × 127¹

Step-2: Prime Factorization of 78749

Prime factors of 78749 are 11, 7159. Prime factorization of 78749 in exponential form is:

78749 = 11¹ × 7159¹

Step-3: Factors of 78740

List of positive integer factors of 78740 that divides 78740 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2540, 3937, 7874, 15748, 19685, 39370

Step-4: Factors of 78749

List of positive integer factors of 78749 that divides 78740 without a remainder.

1, 11, 7159

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78740 and 78749. The biggest common factor number is the GCF number.
So the greatest common factor 78740 and 78749 is 1.

Also check out the Least Common Multiple of 78740 and 78749