Greatest Common Factor of 12, 13, 77, 81, 35

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

• Greatest Common Factor of 12, 13, 77, 81, 35 by common division method
• Greatest Common Factor of 12, 13, 77, 81, 35 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 12

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

1,2,3,4,6,12

Factors of 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 77

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

1,7,11,77

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

Greatest Common Factor

We found the factors 12,13,77,81,35 . The biggest common factor number is the GCF number.
So the greatest common factor 12,13,77,81,35 is 1.

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

• GCF of 56, 64, 64, 68, 18
• GCF of 21, 25, 59, 14, 76
• GCF of 48, 76, 27, 91, 24
• GCF of 17, 13, 51, 25, 45
• GCF of 15, 31, 27, 78, 18

1. What is the GCF of 12, 13, 77, 81, 35?

Answer: GCF of 12, 13, 77, 81, 35 is 1.

2. How to Find the GCF of 12, 13, 77, 81, 35

Answer: Greatest Common Factor(GCF) of 12, 13, 77, 81, 35 = 1

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

Step 2: Then multiply all the prime factors GCF(12, 13, 77, 81, 35) = 1.