Greatest Common Factor of 68, 49, 12, 91, 80

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

• Greatest Common Factor of 68, 49, 12, 91, 80 by common division method
• Greatest Common Factor of 68, 49, 12, 91, 80 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 68

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

1,2,4,17,34,68

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 91

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

1,7,13,91

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Greatest Common Factor

We found the factors 68,49,12,91,80 . The biggest common factor number is the GCF number.
So the greatest common factor 68,49,12,91,80 is 1.

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

• GCF of 87, 48, 57, 96, 31
• GCF of 18, 50, 52, 39, 67
• GCF of 56, 33, 80, 84, 97
• GCF of 82, 54, 28, 62, 33
• GCF of 97, 99, 19, 15, 46

1. What is the GCF of 68, 49, 12, 91, 80?

Answer: GCF of 68, 49, 12, 91, 80 is 1.

2. How to Find the GCF of 68, 49, 12, 91, 80

Answer: Greatest Common Factor(GCF) of 68, 49, 12, 91, 80 = 1

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

Step 2: Then multiply all the prime factors GCF(68, 49, 12, 91, 80) = 1.