Greatest Common Factor of 16, 61, 89, 81

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

• Greatest Common Factor of 16, 61, 89, 81 by common division method
• Greatest Common Factor of 16, 61, 89, 81 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 16

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

1,2,4,8,16

Factors of 61

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

1,61

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 16,61,89,81 . The biggest common factor number is the GCF number.
So the greatest common factor 16,61,89,81 is 1.

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

• GCF of 25, 57, 24, 38
• GCF of 36, 36, 23, 67
• GCF of 23, 25, 94, 93
• GCF of 86, 74, 65, 69
• GCF of 44, 96, 63, 37

1. What is the GCF of 16, 61, 89, 81?

Answer: GCF of 16, 61, 89, 81 is 1.

2. How to Find the GCF of 16, 61, 89, 81

Answer: Greatest Common Factor(GCF) of 16, 61, 89, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(16, 61, 89, 81) = 1.