What is the Greatest Common Factor of 16980 and 16990?

Greatest common factor (GCF) of 16980 and 16990 is 10.

GCF(16980,16990) = 10

We will now calculate the prime factors of 16980 and 16990, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16980 and 16990.

How to find the GCF of 16980 and 16990?

We will first find the prime factorization of 16980 and 16990. After we will calculate the factors of 16980 and 16990 and find the biggest common factor number .

Step-1: Prime Factorization of 16980

Prime factors of 16980 are 2, 3, 5, 283. Prime factorization of 16980 in exponential form is:

16980 = 2² × 3¹ × 5¹ × 283¹

Step-2: Prime Factorization of 16990

Prime factors of 16990 are 2, 5, 1699. Prime factorization of 16990 in exponential form is:

16990 = 2¹ × 5¹ × 1699¹

Step-3: Factors of 16980

List of positive integer factors of 16980 that divides 16980 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 283, 566, 849, 1132, 1415, 1698, 2830, 3396, 4245, 5660, 8490

Step-4: Factors of 16990

List of positive integer factors of 16990 that divides 16980 without a remainder.

1, 2, 5, 10, 1699, 3398, 8495

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16980 and 16990. The biggest common factor number is the GCF number.
So the greatest common factor 16980 and 16990 is 10.

Also check out the Least Common Multiple of 16980 and 16990