What is the Greatest Common Factor of 78440 and 78449?

Greatest common factor (GCF) of 78440 and 78449 is 1.

GCF(78440,78449) = 1

We will now calculate the prime factors of 78440 and 78449, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78440 and 78449.

How to find the GCF of 78440 and 78449?

We will first find the prime factorization of 78440 and 78449. After we will calculate the factors of 78440 and 78449 and find the biggest common factor number .

Step-1: Prime Factorization of 78440

Prime factors of 78440 are 2, 5, 37, 53. Prime factorization of 78440 in exponential form is:

78440 = 2³ × 5¹ × 37¹ × 53¹

Step-2: Prime Factorization of 78449

Prime factors of 78449 are 7, 1601. Prime factorization of 78449 in exponential form is:

78449 = 7² × 1601¹

Step-3: Factors of 78440

List of positive integer factors of 78440 that divides 78440 without a remainder.

1, 2, 4, 5, 8, 10, 20, 37, 40, 53, 74, 106, 148, 185, 212, 265, 296, 370, 424, 530, 740, 1060, 1480, 1961, 2120, 3922, 7844, 9805, 15688, 19610, 39220

Step-4: Factors of 78449

List of positive integer factors of 78449 that divides 78440 without a remainder.

1, 7, 49, 1601, 11207

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78440 and 78449. The biggest common factor number is the GCF number.
So the greatest common factor 78440 and 78449 is 1.

Also check out the Least Common Multiple of 78440 and 78449