Greatest Common Factor of 61, 65, 18, 84

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

• Greatest Common Factor of 61, 65, 18, 84 by common division method
• Greatest Common Factor of 61, 65, 18, 84 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 65

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

1,5,13,65

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Greatest Common Factor

We found the factors 61,65,18,84 . The biggest common factor number is the GCF number.
So the greatest common factor 61,65,18,84 is 1.

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

• GCF of 35, 58, 94, 68
• GCF of 16, 14, 94, 85
• GCF of 66, 48, 68, 17
• GCF of 29, 28, 45, 89
• GCF of 82, 90, 95, 22

1. What is the GCF of 61, 65, 18, 84?

Answer: GCF of 61, 65, 18, 84 is 1.

2. How to Find the GCF of 61, 65, 18, 84

Answer: Greatest Common Factor(GCF) of 61, 65, 18, 84 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 65, 18, 84) = 1.