What is the Greatest Common Factor of 40985 and 40990?

Greatest common factor (GCF) of 40985 and 40990 is 5.

GCF(40985,40990) = 5

We will now calculate the prime factors of 40985 and 40990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40985 and 40990.

How to find the GCF of 40985 and 40990?

We will first find the prime factorization of 40985 and 40990. After we will calculate the factors of 40985 and 40990 and find the biggest common factor number .

Step-1: Prime Factorization of 40985

Prime factors of 40985 are 5, 7, 1171. Prime factorization of 40985 in exponential form is:

40985 = 5¹ × 7¹ × 1171¹

Step-2: Prime Factorization of 40990

Prime factors of 40990 are 2, 5, 4099. Prime factorization of 40990 in exponential form is:

40990 = 2¹ × 5¹ × 4099¹

Step-3: Factors of 40985

List of positive integer factors of 40985 that divides 40985 without a remainder.

1, 5, 7, 35, 1171, 5855, 8197

Step-4: Factors of 40990

List of positive integer factors of 40990 that divides 40985 without a remainder.

1, 2, 5, 10, 4099, 8198, 20495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40985 and 40990. The biggest common factor number is the GCF number.
So the greatest common factor 40985 and 40990 is 5.

Also check out the Least Common Multiple of 40985 and 40990