Greatest Common Factor of 81, 77, 28, 177

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

• Greatest Common Factor of 81, 77, 28, 177 by common division method
• Greatest Common Factor of 81, 77, 28, 177 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 81

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

1,3,9,27,81

Factors of 77

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

1,7,11,77

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 177

List of positive integer factors of 177 that divides 177 without a remainder.

1,3,59,177

Greatest Common Factor

We found the factors 81,77,28,177 . The biggest common factor number is the GCF number.
So the greatest common factor 81,77,28,177 is 1.

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

• GCF of 19, 54, 11, 326
• GCF of 87, 86, 68, 846
• GCF of 58, 59, 76, 408
• GCF of 55, 85, 24, 935
• GCF of 61, 32, 48, 115

1. What is the GCF of 81, 77, 28, 177?

Answer: GCF of 81, 77, 28, 177 is 1.

2. How to Find the GCF of 81, 77, 28, 177

Answer: Greatest Common Factor(GCF) of 81, 77, 28, 177 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 77, 28, 177) = 1.