Greatest Common Factor of 221, 721, 720

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

• Greatest Common Factor of 221, 721, 720 by common division method
• Greatest Common Factor of 221, 721, 720 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 221

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

1,13,17,221

Factors of 721

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

1,7,103,721

Factors of 720

List of positive integer factors of 720 that divides 720 without a remainder.

1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,40,45,48,60,72,80,90,120,144,180,240,360,720

Greatest Common Factor

We found the factors 221,721,720 . The biggest common factor number is the GCF number.
So the greatest common factor 221,721,720 is 1.

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

• GCF of 315, 869, 897
• GCF of 245, 125, 458
• GCF of 743, 120, 410
• GCF of 708, 211, 142
• GCF of 127, 557, 870

1. What is the GCF of 221, 721, 720?

Answer: GCF of 221, 721, 720 is 1.

2. How to Find the GCF of 221, 721, 720

Answer: Greatest Common Factor(GCF) of 221, 721, 720 = 1

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

Step 2: Then multiply all the prime factors GCF(221, 721, 720) = 1.