Greatest Common Factor of 66, 35, 81, 85, 40

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

• Greatest Common Factor of 66, 35, 81, 85, 40 by common division method
• Greatest Common Factor of 66, 35, 81, 85, 40 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 35

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

1,5,7,35

Factors of 81

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

1,3,9,27,81

Factors of 85

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

1,5,17,85

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Greatest Common Factor

We found the factors 66,35,81,85,40 . The biggest common factor number is the GCF number.
So the greatest common factor 66,35,81,85,40 is 1.

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

• GCF of 86, 73, 51, 58, 40
• GCF of 69, 95, 51, 59, 88
• GCF of 55, 66, 24, 80, 88
• GCF of 48, 96, 78, 42, 29
• GCF of 66, 79, 51, 56, 94

1. What is the GCF of 66, 35, 81, 85, 40?

Answer: GCF of 66, 35, 81, 85, 40 is 1.

2. How to Find the GCF of 66, 35, 81, 85, 40

Answer: Greatest Common Factor(GCF) of 66, 35, 81, 85, 40 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 35, 81, 85, 40) = 1.