Greatest Common Factor of 91, 65, 33, 1, 78

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

• Greatest Common Factor of 91, 65, 33, 1, 78 by common division method
• Greatest Common Factor of 91, 65, 33, 1, 78 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 91

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

1,7,13,91

Factors of 65

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

1,5,13,65

Factors of 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

Factors of 1

List of positive integer factors of 1 that divides 1 without a remainder.

1

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Greatest Common Factor

We found the factors 91,65,33,1,78 . The biggest common factor number is the GCF number.
So the greatest common factor 91,65,33,1,78 is 1.

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

• GCF of 25, 76, 13, 2, 94
• GCF of 49, 56, 14, 5, 87
• GCF of 99, 49, 64, 1, 20
• GCF of 16, 24, 11, 7, 78
• GCF of 71, 12, 24, 6, 70

1. What is the GCF of 91, 65, 33, 1, 78?

Answer: GCF of 91, 65, 33, 1, 78 is 1.

2. How to Find the GCF of 91, 65, 33, 1, 78

Answer: Greatest Common Factor(GCF) of 91, 65, 33, 1, 78 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 65, 33, 1, 78) = 1.