Greatest Common Factor of 6860, 680, 720, 21

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

• Greatest Common Factor of 6860, 680, 720, 21 by common division method
• Greatest Common Factor of 6860, 680, 720, 21 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 6860

List of positive integer factors of 6860 that divides 6860 without a remainder.

1,2,4,5,7,10,14,20,28,35,49,70,98,140,196,245,343,490,686,980,1372,1715,3430,6860

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 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

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 6860,680,720,21 . The biggest common factor number is the GCF number.
So the greatest common factor 6860,680,720,21 is 1.

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

• GCF of 8973, 102, 538, 75
• GCF of 4833, 183, 865, 61
• GCF of 8607, 768, 364, 65
• GCF of 1518, 723, 104, 10
• GCF of 2219, 924, 571, 62

1. What is the GCF of 6860, 680, 720, 21?

Answer: GCF of 6860, 680, 720, 21 is 1.

2. How to Find the GCF of 6860, 680, 720, 21

Answer: Greatest Common Factor(GCF) of 6860, 680, 720, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(6860, 680, 720, 21) = 1.