Greatest Common Factor of 11, 33, 61, 81

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

• Greatest Common Factor of 11, 33, 61, 81 by common division method
• Greatest Common Factor of 11, 33, 61, 81 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 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 11,33,61,81 . The biggest common factor number is the GCF number.
So the greatest common factor 11,33,61,81 is 1.

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

• GCF of 89, 29, 19, 17
• GCF of 42, 73, 90, 82
• GCF of 83, 17, 87, 21
• GCF of 24, 52, 92, 60
• GCF of 55, 18, 22, 61

1. What is the GCF of 11, 33, 61, 81?

Answer: GCF of 11, 33, 61, 81 is 1.

2. How to Find the GCF of 11, 33, 61, 81

Answer: Greatest Common Factor(GCF) of 11, 33, 61, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(11, 33, 61, 81) = 1.