Greatest Common Factor of 21, 65, 36, 897

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

• Greatest Common Factor of 21, 65, 36, 897 by common division method
• Greatest Common Factor of 21, 65, 36, 897 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 65

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

1,5,13,65

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 897

List of positive integer factors of 897 that divides 897 without a remainder.

1,3,13,23,39,69,299,897

Greatest Common Factor

We found the factors 21,65,36,897 . The biggest common factor number is the GCF number.
So the greatest common factor 21,65,36,897 is 1.

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

• GCF of 36, 51, 11, 265
• GCF of 10, 99, 40, 890
• GCF of 28, 68, 49, 604
• GCF of 11, 44, 35, 989
• GCF of 39, 34, 65, 480

1. What is the GCF of 21, 65, 36, 897?

Answer: GCF of 21, 65, 36, 897 is 1.

2. How to Find the GCF of 21, 65, 36, 897

Answer: Greatest Common Factor(GCF) of 21, 65, 36, 897 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 65, 36, 897) = 1.