Greatest Common Factor of 61, 16, 82, 21, 85

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

• Greatest Common Factor of 61, 16, 82, 21, 85 by common division method
• Greatest Common Factor of 61, 16, 82, 21, 85 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 16

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

1,2,4,8,16

Factors of 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Greatest Common Factor

We found the factors 61,16,82,21,85 . The biggest common factor number is the GCF number.
So the greatest common factor 61,16,82,21,85 is 1.

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

• GCF of 96, 57, 91, 18, 95
• GCF of 19, 29, 93, 58, 69
• GCF of 38, 89, 56, 20, 91
• GCF of 33, 48, 39, 11, 35
• GCF of 60, 64, 60, 80, 88

1. What is the GCF of 61, 16, 82, 21, 85?

Answer: GCF of 61, 16, 82, 21, 85 is 1.

2. How to Find the GCF of 61, 16, 82, 21, 85

Answer: Greatest Common Factor(GCF) of 61, 16, 82, 21, 85 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 16, 82, 21, 85) = 1.