Greatest Common Factor of 21, 38, 73, 163

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

• Greatest Common Factor of 21, 38, 73, 163 by common division method
• Greatest Common Factor of 21, 38, 73, 163 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 73

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

1,73

Factors of 163

List of positive integer factors of 163 that divides 163 without a remainder.

1,163

Greatest Common Factor

We found the factors 21,38,73,163 . The biggest common factor number is the GCF number.
So the greatest common factor 21,38,73,163 is 1.

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

• GCF of 59, 89, 17, 912
• GCF of 49, 62, 25, 500
• GCF of 98, 93, 61, 896
• GCF of 67, 85, 54, 829
• GCF of 78, 40, 46, 707

1. What is the GCF of 21, 38, 73, 163?

Answer: GCF of 21, 38, 73, 163 is 1.

2. How to Find the GCF of 21, 38, 73, 163

Answer: Greatest Common Factor(GCF) of 21, 38, 73, 163 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 38, 73, 163) = 1.