Greatest Common Factor of 81, 65, 161, 225

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

• Greatest Common Factor of 81, 65, 161, 225 by common division method
• Greatest Common Factor of 81, 65, 161, 225 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 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

Factors of 225

List of positive integer factors of 225 that divides 225 without a remainder.

1,3,5,9,15,25,45,75,225

Greatest Common Factor

We found the factors 81,65,161,225 . The biggest common factor number is the GCF number.
So the greatest common factor 81,65,161,225 is 1.

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

• GCF of 18, 64, 964, 118
• GCF of 94, 41, 857, 662
• GCF of 84, 21, 825, 756
• GCF of 79, 78, 376, 126
• GCF of 56, 76, 264, 801

1. What is the GCF of 81, 65, 161, 225?

Answer: GCF of 81, 65, 161, 225 is 1.

2. How to Find the GCF of 81, 65, 161, 225

Answer: Greatest Common Factor(GCF) of 81, 65, 161, 225 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 65, 161, 225) = 1.