Greatest Common Factor of 21, 13, 512

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

• Greatest Common Factor of 21, 13, 512 by common division method
• Greatest Common Factor of 21, 13, 512 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

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 21,13,512 . The biggest common factor number is the GCF number.
So the greatest common factor 21,13,512 is 1.

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

• GCF of 74, 80, 364
• GCF of 58, 45, 909
• GCF of 49, 24, 789
• GCF of 86, 32, 394
• GCF of 17, 59, 691

1. What is the GCF of 21, 13, 512?

Answer: GCF of 21, 13, 512 is 1.

2. How to Find the GCF of 21, 13, 512

Answer: Greatest Common Factor(GCF) of 21, 13, 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, 13, 512) = 1.