Greatest Common Factor of 66, 59, 45, 15

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

• Greatest Common Factor of 66, 59, 45, 15 by common division method
• Greatest Common Factor of 66, 59, 45, 15 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 59

List of positive integer factors of 59 that divides 59 without a remainder.

1,59

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 66,59,45,15 . The biggest common factor number is the GCF number.
So the greatest common factor 66,59,45,15 is 1.

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

• GCF of 94, 73, 72, 78
• GCF of 87, 73, 50, 35
• GCF of 79, 62, 95, 47
• GCF of 39, 81, 31, 81
• GCF of 17, 31, 37, 40

1. What is the GCF of 66, 59, 45, 15?

Answer: GCF of 66, 59, 45, 15 is 1.

2. How to Find the GCF of 66, 59, 45, 15

Answer: Greatest Common Factor(GCF) of 66, 59, 45, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 59, 45, 15) = 1.