What is the Greatest Common Factor of 278 and 292?

Greatest common factor (GCF) of 278 and 292 is 2.

GCF(278,292) = 2

We will now calculate the prime factors of 278 and 292, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 278 and 292.

How to find the GCF of 278 and 292?

We will first find the prime factorization of 278 and 292. After we will calculate the factors of 278 and 292 and find the biggest common factor number .

Step-1: Prime Factorization of 278

Prime factors of 278 are 2, 139. Prime factorization of 278 in exponential form is:

278 = 2¹ × 139¹

Step-2: Prime Factorization of 292

Prime factors of 292 are 2, 73. Prime factorization of 292 in exponential form is:

292 = 2² × 73¹

Step-3: Factors of 278

List of positive integer factors of 278 that divides 278 without a remainder.

1, 2, 139

Step-4: Factors of 292

List of positive integer factors of 292 that divides 278 without a remainder.

1, 2, 4, 73, 146

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 278 and 292. The biggest common factor number is the GCF number.
So the greatest common factor 278 and 292 is 2.

Also check out the Least Common Multiple of 278 and 292