Greatest Common Factor of 15, 29, 66, 77

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

• Greatest Common Factor of 15, 29, 66, 77 by common division method
• Greatest Common Factor of 15, 29, 66, 77 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 15

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

1,3,5,15

Factors of 29

List of positive integer factors of 29 that divides 29 without a remainder.

1,29

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 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Greatest Common Factor

We found the factors 15,29,66,77 . The biggest common factor number is the GCF number.
So the greatest common factor 15,29,66,77 is 1.

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

• GCF of 13, 69, 61, 64
• GCF of 80, 44, 58, 84
• GCF of 84, 35, 92, 96
• GCF of 60, 38, 96, 70
• GCF of 78, 26, 77, 80

1. What is the GCF of 15, 29, 66, 77?

Answer: GCF of 15, 29, 66, 77 is 1.

2. How to Find the GCF of 15, 29, 66, 77

Answer: Greatest Common Factor(GCF) of 15, 29, 66, 77 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 29, 66, 77) = 1.