Greatest Common Factor of 21, 68, 197

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

• Greatest Common Factor of 21, 68, 197 by common division method
• Greatest Common Factor of 21, 68, 197 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 197

List of positive integer factors of 197 that divides 197 without a remainder.

1,197

Greatest Common Factor

We found the factors 21,68,197 . The biggest common factor number is the GCF number.
So the greatest common factor 21,68,197 is 1.

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

• GCF of 21, 68, 795
• GCF of 39, 54, 982
• GCF of 55, 35, 864
• GCF of 29, 72, 588
• GCF of 55, 25, 594

1. What is the GCF of 21, 68, 197?

Answer: GCF of 21, 68, 197 is 1.

2. How to Find the GCF of 21, 68, 197

Answer: Greatest Common Factor(GCF) of 21, 68, 197 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 68, 197) = 1.