Greatest Common Factor of 21, 77, 960

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

• Greatest Common Factor of 21, 77, 960 by common division method
• Greatest Common Factor of 21, 77, 960 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 77

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

1,7,11,77

Factors of 960

List of positive integer factors of 960 that divides 960 without a remainder.

1,2,3,4,5,6,8,10,12,15,16,20,24,30,32,40,48,60,64,80,96,120,160,192,240,320,480,960

Greatest Common Factor

We found the factors 21,77,960 . The biggest common factor number is the GCF number.
So the greatest common factor 21,77,960 is 1.

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

• GCF of 11, 98, 418
• GCF of 77, 25, 806
• GCF of 38, 55, 126
• GCF of 64, 40, 573
• GCF of 98, 57, 229

1. What is the GCF of 21, 77, 960?

Answer: GCF of 21, 77, 960 is 1.

2. How to Find the GCF of 21, 77, 960

Answer: Greatest Common Factor(GCF) of 21, 77, 960 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 77, 960) = 1.