What is the Greatest Common Factor of 31890 and 31894?

Greatest common factor (GCF) of 31890 and 31894 is 2.

GCF(31890,31894) = 2

We will now calculate the prime factors of 31890 and 31894, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31890 and 31894.

How to find the GCF of 31890 and 31894?

We will first find the prime factorization of 31890 and 31894. After we will calculate the factors of 31890 and 31894 and find the biggest common factor number .

Step-1: Prime Factorization of 31890

Prime factors of 31890 are 2, 3, 5, 1063. Prime factorization of 31890 in exponential form is:

31890 = 2¹ × 3¹ × 5¹ × 1063¹

Step-2: Prime Factorization of 31894

Prime factors of 31894 are 2, 37, 431. Prime factorization of 31894 in exponential form is:

31894 = 2¹ × 37¹ × 431¹

Step-3: Factors of 31890

List of positive integer factors of 31890 that divides 31890 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 1063, 2126, 3189, 5315, 6378, 10630, 15945

Step-4: Factors of 31894

List of positive integer factors of 31894 that divides 31890 without a remainder.

1, 2, 37, 74, 431, 862, 15947

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31890 and 31894. The biggest common factor number is the GCF number.
So the greatest common factor 31890 and 31894 is 2.

Also check out the Least Common Multiple of 31890 and 31894