Greatest Common Factor of 66, 7, 18, 10

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

• Greatest Common Factor of 66, 7, 18, 10 by common division method
• Greatest Common Factor of 66, 7, 18, 10 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 7

List of positive integer factors of 7 that divides 7 without a remainder.

1,7

Factors of 18

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

1,2,3,6,9,18

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Greatest Common Factor

We found the factors 66,7,18,10 . The biggest common factor number is the GCF number.
So the greatest common factor 66,7,18,10 is 1.

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

• GCF of 37, 5, 34, 92
• GCF of 13, 6, 47, 12
• GCF of 75, 1, 77, 18
• GCF of 41, 1, 56, 50
• GCF of 79, 8, 72, 91

1. What is the GCF of 66, 7, 18, 10?

Answer: GCF of 66, 7, 18, 10 is 1.

2. How to Find the GCF of 66, 7, 18, 10

Answer: Greatest Common Factor(GCF) of 66, 7, 18, 10 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 7, 18, 10) = 1.