Greatest Common Factor of 11, 43, 21, 77

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

• Greatest Common Factor of 11, 43, 21, 77 by common division method
• Greatest Common Factor of 11, 43, 21, 77 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 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Greatest Common Factor

We found the factors 11,43,21,77 . The biggest common factor number is the GCF number.
So the greatest common factor 11,43,21,77 is 1.

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

• GCF of 65, 57, 44, 82
• GCF of 78, 24, 45, 82
• GCF of 99, 67, 20, 38
• GCF of 29, 27, 48, 55
• GCF of 83, 42, 53, 43

1. What is the GCF of 11, 43, 21, 77?

Answer: GCF of 11, 43, 21, 77 is 1.

2. How to Find the GCF of 11, 43, 21, 77

Answer: Greatest Common Factor(GCF) of 11, 43, 21, 77 = 1

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

Step 2: Then multiply all the prime factors GCF(11, 43, 21, 77) = 1.