What is the Greatest Common Factor of 286 and 290?

Greatest common factor (GCF) of 286 and 290 is 2.

GCF(286,290) = 2

We will now calculate the prime factors of 286 and 290, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 286 and 290.

How to find the GCF of 286 and 290?

We will first find the prime factorization of 286 and 290. After we will calculate the factors of 286 and 290 and find the biggest common factor number .

Step-1: Prime Factorization of 286

Prime factors of 286 are 2, 11, 13. Prime factorization of 286 in exponential form is:

286 = 2¹ × 11¹ × 13¹

Step-2: Prime Factorization of 290

Prime factors of 290 are 2, 5, 29. Prime factorization of 290 in exponential form is:

290 = 2¹ × 5¹ × 29¹

Step-3: Factors of 286

List of positive integer factors of 286 that divides 286 without a remainder.

1, 2, 11, 13, 22, 26, 143

Step-4: Factors of 290

List of positive integer factors of 290 that divides 286 without a remainder.

1, 2, 5, 10, 29, 58, 145

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 286 and 290. The biggest common factor number is the GCF number.
So the greatest common factor 286 and 290 is 2.

Also check out the Least Common Multiple of 286 and 290