Greatest Common Factor of 11, 47, 21, 686

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

• Greatest Common Factor of 11, 47, 21, 686 by common division method
• Greatest Common Factor of 11, 47, 21, 686 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 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 21

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

1,3,7,21

Factors of 686

List of positive integer factors of 686 that divides 686 without a remainder.

1,2,7,14,49,98,343,686

Greatest Common Factor

We found the factors 11,47,21,686 . The biggest common factor number is the GCF number.
So the greatest common factor 11,47,21,686 is 1.

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

• GCF of 32, 67, 11, 515
• GCF of 16, 88, 92, 541
• GCF of 60, 82, 73, 300
• GCF of 58, 67, 80, 846
• GCF of 90, 46, 70, 223

1. What is the GCF of 11, 47, 21, 686?

Answer: GCF of 11, 47, 21, 686 is 1.

2. How to Find the GCF of 11, 47, 21, 686

Answer: Greatest Common Factor(GCF) of 11, 47, 21, 686 = 1

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

Step 2: Then multiply all the prime factors GCF(11, 47, 21, 686) = 1.