Greatest Common Factor of 21, 80, 650

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

• Greatest Common Factor of 21, 80, 650 by common division method
• Greatest Common Factor of 21, 80, 650 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 650

List of positive integer factors of 650 that divides 650 without a remainder.

1,2,5,10,13,25,26,50,65,130,325,650

Greatest Common Factor

We found the factors 21,80,650 . The biggest common factor number is the GCF number.
So the greatest common factor 21,80,650 is 1.

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

• GCF of 35, 95, 251
• GCF of 38, 78, 585
• GCF of 55, 83, 555
• GCF of 53, 32, 171
• GCF of 40, 45, 493

1. What is the GCF of 21, 80, 650?

Answer: GCF of 21, 80, 650 is 1.

2. How to Find the GCF of 21, 80, 650

Answer: Greatest Common Factor(GCF) of 21, 80, 650 = 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, 650) = 1.