Greatest Common Factor of 21, 81, 995

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

• Greatest Common Factor of 21, 81, 995 by common division method
• Greatest Common Factor of 21, 81, 995 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 81

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

1,3,9,27,81

Factors of 995

List of positive integer factors of 995 that divides 995 without a remainder.

1,5,199,995

Greatest Common Factor

We found the factors 21,81,995 . The biggest common factor number is the GCF number.
So the greatest common factor 21,81,995 is 1.

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

• GCF of 18, 46, 409
• GCF of 51, 90, 421
• GCF of 70, 86, 318
• GCF of 45, 88, 465
• GCF of 29, 60, 859

1. What is the GCF of 21, 81, 995?

Answer: GCF of 21, 81, 995 is 1.

2. How to Find the GCF of 21, 81, 995

Answer: Greatest Common Factor(GCF) of 21, 81, 995 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 81, 995) = 1.