Greatest Common Factor of 77, 28, 65, 68, 30

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

• Greatest Common Factor of 77, 28, 65, 68, 30 by common division method
• Greatest Common Factor of 77, 28, 65, 68, 30 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 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Greatest Common Factor

We found the factors 77,28,65,68,30 . The biggest common factor number is the GCF number.
So the greatest common factor 77,28,65,68,30 is 1.

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

• GCF of 51, 10, 70, 81, 35
• GCF of 27, 74, 22, 84, 60
• GCF of 52, 57, 22, 90, 44
• GCF of 33, 15, 53, 37, 80
• GCF of 67, 87, 70, 48, 85

1. What is the GCF of 77, 28, 65, 68, 30?

Answer: GCF of 77, 28, 65, 68, 30 is 1.

2. How to Find the GCF of 77, 28, 65, 68, 30

Answer: Greatest Common Factor(GCF) of 77, 28, 65, 68, 30 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 28, 65, 68, 30) = 1.