Greatest Common Factor of 21, 16, 32, 747

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

• Greatest Common Factor of 21, 16, 32, 747 by common division method
• Greatest Common Factor of 21, 16, 32, 747 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 16

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

1,2,4,8,16

Factors of 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Factors of 747

List of positive integer factors of 747 that divides 747 without a remainder.

1,3,9,83,249,747

Greatest Common Factor

We found the factors 21,16,32,747 . The biggest common factor number is the GCF number.
So the greatest common factor 21,16,32,747 is 1.

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

• GCF of 46, 32, 69, 359
• GCF of 10, 32, 23, 902
• GCF of 47, 75, 90, 233
• GCF of 77, 29, 93, 383
• GCF of 71, 85, 16, 132

1. What is the GCF of 21, 16, 32, 747?

Answer: GCF of 21, 16, 32, 747 is 1.

2. How to Find the GCF of 21, 16, 32, 747

Answer: Greatest Common Factor(GCF) of 21, 16, 32, 747 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 16, 32, 747) = 1.