What is the Greatest Common Factor of 890 and 902?

Greatest common factor (GCF) of 890 and 902 is 2.

GCF(890,902) = 2

We will now calculate the prime factors of 890 and 902, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 890 and 902.

How to find the GCF of 890 and 902?

We will first find the prime factorization of 890 and 902. After we will calculate the factors of 890 and 902 and find the biggest common factor number .

Step-1: Prime Factorization of 890

Prime factors of 890 are 2, 5, 89. Prime factorization of 890 in exponential form is:

890 = 2¹ × 5¹ × 89¹

Step-2: Prime Factorization of 902

Prime factors of 902 are 2, 11, 41. Prime factorization of 902 in exponential form is:

902 = 2¹ × 11¹ × 41¹

Step-3: Factors of 890

List of positive integer factors of 890 that divides 890 without a remainder.

1, 2, 5, 10, 89, 178, 445

Step-4: Factors of 902

List of positive integer factors of 902 that divides 890 without a remainder.

1, 2, 11, 22, 41, 82, 451

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 890 and 902. The biggest common factor number is the GCF number.
So the greatest common factor 890 and 902 is 2.

Also check out the Least Common Multiple of 890 and 902