Greatest Common Factor of 81, 25, 65, 61, 682

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

• Greatest Common Factor of 81, 25, 65, 61, 682 by common division method
• Greatest Common Factor of 81, 25, 65, 61, 682 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 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 65

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

1,5,13,65

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 682

List of positive integer factors of 682 that divides 682 without a remainder.

1,2,11,22,31,62,341,682

Greatest Common Factor

We found the factors 81,25,65,61,682 . The biggest common factor number is the GCF number.
So the greatest common factor 81,25,65,61,682 is 1.

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

• GCF of 57, 33, 48, 23, 851
• GCF of 20, 49, 67, 22, 698
• GCF of 31, 53, 34, 71, 454
• GCF of 39, 18, 93, 24, 992
• GCF of 58, 66, 11, 91, 507

1. What is the GCF of 81, 25, 65, 61, 682?

Answer: GCF of 81, 25, 65, 61, 682 is 1.

2. How to Find the GCF of 81, 25, 65, 61, 682

Answer: Greatest Common Factor(GCF) of 81, 25, 65, 61, 682 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 25, 65, 61, 682) = 1.