Greatest Common Factor of 21, 73, 195

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

• Greatest Common Factor of 21, 73, 195 by common division method
• Greatest Common Factor of 21, 73, 195 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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 195

List of positive integer factors of 195 that divides 195 without a remainder.

1,3,5,13,15,39,65,195

Greatest Common Factor

We found the factors 21,73,195 . The biggest common factor number is the GCF number.
So the greatest common factor 21,73,195 is 1.

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

• GCF of 97, 77, 561
• GCF of 35, 69, 286
• GCF of 93, 47, 544
• GCF of 70, 72, 564
• GCF of 96, 93, 969

1. What is the GCF of 21, 73, 195?

Answer: GCF of 21, 73, 195 is 1.

2. How to Find the GCF of 21, 73, 195

Answer: Greatest Common Factor(GCF) of 21, 73, 195 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 73, 195) = 1.