Greatest Common Factor of 78, 11, 65, 122

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

• Greatest Common Factor of 78, 11, 65, 122 by common division method
• Greatest Common Factor of 78, 11, 65, 122 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 78

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

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

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 65

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

1,5,13,65

Factors of 122

List of positive integer factors of 122 that divides 122 without a remainder.

1,2,61,122

Greatest Common Factor

We found the factors 78,11,65,122 . The biggest common factor number is the GCF number.
So the greatest common factor 78,11,65,122 is 1.

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

• GCF of 57, 58, 16, 296
• GCF of 50, 18, 76, 473
• GCF of 31, 28, 68, 849
• GCF of 60, 47, 57, 715
• GCF of 65, 73, 15, 382

1. What is the GCF of 78, 11, 65, 122?

Answer: GCF of 78, 11, 65, 122 is 1.

2. How to Find the GCF of 78, 11, 65, 122

Answer: Greatest Common Factor(GCF) of 78, 11, 65, 122 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 11, 65, 122) = 1.