Greatest Common Factor of 21, 83, 63, 512

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

• Greatest Common Factor of 21, 83, 63, 512 by common division method
• Greatest Common Factor of 21, 83, 63, 512 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 83

List of positive integer factors of 83 that divides 83 without a remainder.

1,83

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 512

List of positive integer factors of 512 that divides 512 without a remainder.

1,2,4,8,16,32,64,128,256,512

Greatest Common Factor

We found the factors 21,83,63,512 . The biggest common factor number is the GCF number.
So the greatest common factor 21,83,63,512 is 1.

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

• GCF of 18, 23, 61, 289
• GCF of 28, 60, 62, 303
• GCF of 33, 55, 71, 605
• GCF of 65, 27, 88, 210
• GCF of 10, 72, 56, 934

1. What is the GCF of 21, 83, 63, 512?

Answer: GCF of 21, 83, 63, 512 is 1.

2. How to Find the GCF of 21, 83, 63, 512

Answer: Greatest Common Factor(GCF) of 21, 83, 63, 512 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 83, 63, 512) = 1.