Greatest Common Factor of 21, 76, 57, 668

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

• Greatest Common Factor of 21, 76, 57, 668 by common division method
• Greatest Common Factor of 21, 76, 57, 668 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

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

Factors of 21

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

1,3,7,21

Factors of 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 57

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

1,3,19,57

Factors of 668

List of positive integer factors of 668 that divides 668 without a remainder.

1,2,4,167,334,668

Greatest Common Factor

We found the factors 21,76,57,668 . The biggest common factor number is the GCF number.
So the greatest common factor 21,76,57,668 is 1.

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

• GCF of 72, 66, 86, 883
• GCF of 34, 44, 72, 819
• GCF of 69, 39, 13, 113
• GCF of 16, 96, 24, 124
• GCF of 67, 10, 27, 159

1. What is the GCF of 21, 76, 57, 668?

Answer: GCF of 21, 76, 57, 668 is 1.

2. How to Find the GCF of 21, 76, 57, 668

Answer: Greatest Common Factor(GCF) of 21, 76, 57, 668 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 76, 57, 668) = 1.