Greatest Common Factor of 65, 49, 81, 189

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

• Greatest Common Factor of 65, 49, 81, 189 by common division method
• Greatest Common Factor of 65, 49, 81, 189 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 65

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

1,5,13,65

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 81

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

1,3,9,27,81

Factors of 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Greatest Common Factor

We found the factors 65,49,81,189 . The biggest common factor number is the GCF number.
So the greatest common factor 65,49,81,189 is 1.

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

• GCF of 31, 80, 47, 468
• GCF of 19, 98, 14, 199
• GCF of 10, 23, 94, 547
• GCF of 56, 59, 16, 799
• GCF of 80, 80, 25, 487

1. What is the GCF of 65, 49, 81, 189?

Answer: GCF of 65, 49, 81, 189 is 1.

2. How to Find the GCF of 65, 49, 81, 189

Answer: Greatest Common Factor(GCF) of 65, 49, 81, 189 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 49, 81, 189) = 1.