Greatest Common Factor of 721, 680, 221

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

• Greatest Common Factor of 721, 680, 221 by common division method
• Greatest Common Factor of 721, 680, 221 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 721

List of positive integer factors of 721 that divides 721 without a remainder.

1,7,103,721

Factors of 680

List of positive integer factors of 680 that divides 680 without a remainder.

1,2,4,5,8,10,17,20,34,40,68,85,136,170,340,680

Factors of 221

List of positive integer factors of 221 that divides 221 without a remainder.

1,13,17,221

Greatest Common Factor

We found the factors 721,680,221 . The biggest common factor number is the GCF number.
So the greatest common factor 721,680,221 is 1.

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

• GCF of 912, 973, 706
• GCF of 940, 515, 479
• GCF of 191, 228, 647
• GCF of 873, 917, 250
• GCF of 205, 898, 880

1. What is the GCF of 721, 680, 221?

Answer: GCF of 721, 680, 221 is 1.

2. How to Find the GCF of 721, 680, 221

Answer: Greatest Common Factor(GCF) of 721, 680, 221 = 1

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

Step 2: Then multiply all the prime factors GCF(721, 680, 221) = 1.