Greatest Common Factor of 81, 36, 64, 16

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

• Greatest Common Factor of 81, 36, 64, 16 by common division method
• Greatest Common Factor of 81, 36, 64, 16 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 81

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

1,3,9,27,81

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Greatest Common Factor

We found the factors 81,36,64,16 . The biggest common factor number is the GCF number.
So the greatest common factor 81,36,64,16 is 1.

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

• GCF of 25, 51, 99, 71
• GCF of 19, 53, 18, 95
• GCF of 57, 22, 26, 58
• GCF of 41, 30, 96, 11
• GCF of 39, 81, 19, 22

1. What is the GCF of 81, 36, 64, 16?

Answer: GCF of 81, 36, 64, 16 is 1.

2. How to Find the GCF of 81, 36, 64, 16

Answer: Greatest Common Factor(GCF) of 81, 36, 64, 16 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 36, 64, 16) = 1.