Greatest Common Factor of 23, 67, 16, 21

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

• Greatest Common Factor of 23, 67, 16, 21 by common division method
• Greatest Common Factor of 23, 67, 16, 21 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 23,67,16,21 . The biggest common factor number is the GCF number.
So the greatest common factor 23,67,16,21 is 1.

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

• GCF of 83, 48, 81, 46
• GCF of 26, 64, 20, 20
• GCF of 75, 53, 25, 94
• GCF of 45, 15, 56, 92
• GCF of 64, 30, 75, 68

1. What is the GCF of 23, 67, 16, 21?

Answer: GCF of 23, 67, 16, 21 is 1.

2. How to Find the GCF of 23, 67, 16, 21

Answer: Greatest Common Factor(GCF) of 23, 67, 16, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 67, 16, 21) = 1.