Greatest Common Factor of 21, 80, 47, 788

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

• Greatest Common Factor of 21, 80, 47, 788 by common division method
• Greatest Common Factor of 21, 80, 47, 788 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 21

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

1,3,7,21

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 47

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

1,47

Factors of 788

List of positive integer factors of 788 that divides 788 without a remainder.

1,2,4,197,394,788

Greatest Common Factor

We found the factors 21,80,47,788 . The biggest common factor number is the GCF number.
So the greatest common factor 21,80,47,788 is 1.

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

• GCF of 71, 37, 86, 362
• GCF of 43, 58, 54, 780
• GCF of 91, 96, 27, 355
• GCF of 28, 11, 48, 863
• GCF of 68, 91, 87, 371

1. What is the GCF of 21, 80, 47, 788?

Answer: GCF of 21, 80, 47, 788 is 1.

2. How to Find the GCF of 21, 80, 47, 788

Answer: Greatest Common Factor(GCF) of 21, 80, 47, 788 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 80, 47, 788) = 1.