Greatest Common Factor of 11, 81, 57, 84

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

• Greatest Common Factor of 11, 81, 57, 84 by common division method
• Greatest Common Factor of 11, 81, 57, 84 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 81

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

1,3,9,27,81

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Greatest Common Factor

We found the factors 11,81,57,84 . The biggest common factor number is the GCF number.
So the greatest common factor 11,81,57,84 is 1.

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

• GCF of 25, 55, 58, 99
• GCF of 45, 50, 99, 55
• GCF of 26, 44, 52, 16
• GCF of 45, 49, 32, 58
• GCF of 28, 70, 79, 34

1. What is the GCF of 11, 81, 57, 84?

Answer: GCF of 11, 81, 57, 84 is 1.

2. How to Find the GCF of 11, 81, 57, 84

Answer: Greatest Common Factor(GCF) of 11, 81, 57, 84 = 1

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

Step 2: Then multiply all the prime factors GCF(11, 81, 57, 84) = 1.