Greatest Common Factor of 18, 36, 81, 197

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 18, 36, 81, 197 by common division method
• Greatest Common Factor of 18, 36, 81, 197 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 197

List of positive integer factors of 197 that divides 197 without a remainder.

1,197

Greatest Common Factor

We found the factors 18,36,81,197 . The biggest common factor number is the GCF number.
So the greatest common factor 18,36,81,197 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 14, 42, 42, 988
• GCF of 45, 32, 21, 742
• GCF of 61, 94, 64, 944
• GCF of 46, 58, 79, 831
• GCF of 22, 61, 18, 975

1. What is the GCF of 18, 36, 81, 197?

Answer: GCF of 18, 36, 81, 197 is 1.

2. How to Find the GCF of 18, 36, 81, 197

Answer: Greatest Common Factor(GCF) of 18, 36, 81, 197 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(18, 36, 81, 197) = 1.