Greatest Common Factor of 65, 90, 53, 12, 81

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

• Greatest Common Factor of 65, 90, 53, 12, 81 by common division method
• Greatest Common Factor of 65, 90, 53, 12, 81 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 53

List of positive integer factors of 53 that divides 53 without a remainder.

1,53

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 65,90,53,12,81 . The biggest common factor number is the GCF number.
So the greatest common factor 65,90,53,12,81 is 1.

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

• GCF of 67, 32, 81, 24, 40
• GCF of 76, 77, 38, 92, 79
• GCF of 59, 72, 15, 83, 33
• GCF of 93, 29, 80, 12, 61
• GCF of 16, 37, 84, 70, 71

1. What is the GCF of 65, 90, 53, 12, 81?

Answer: GCF of 65, 90, 53, 12, 81 is 1.

2. How to Find the GCF of 65, 90, 53, 12, 81

Answer: Greatest Common Factor(GCF) of 65, 90, 53, 12, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 90, 53, 12, 81) = 1.