Greatest Common Factor of 42, 27, 91, 680

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

• Greatest Common Factor of 42, 27, 91, 680 by common division method
• Greatest Common Factor of 42, 27, 91, 680 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

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

Greatest Common Factor

We found the factors 42,27,91,680 . The biggest common factor number is the GCF number.
So the greatest common factor 42,27,91,680 is 1.

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

• GCF of 94, 53, 22, 543
• GCF of 59, 16, 54, 544
• GCF of 69, 38, 65, 402
• GCF of 26, 77, 89, 934
• GCF of 22, 91, 55, 300

1. What is the GCF of 42, 27, 91, 680?

Answer: GCF of 42, 27, 91, 680 is 1.

2. How to Find the GCF of 42, 27, 91, 680

Answer: Greatest Common Factor(GCF) of 42, 27, 91, 680 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 27, 91, 680) = 1.