Greatest Common Factor of 21, 45, 711

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

• Greatest Common Factor of 21, 45, 711 by common division method
• Greatest Common Factor of 21, 45, 711 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 21

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

1,3,7,21

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 711

List of positive integer factors of 711 that divides 711 without a remainder.

1,3,9,79,237,711

Greatest Common Factor

We found the factors 21,45,711 . The biggest common factor number is the GCF number.
So the greatest common factor 21,45,711 is 3.

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

• GCF of 70, 38, 385
• GCF of 88, 44, 704
• GCF of 83, 21, 566
• GCF of 12, 47, 916
• GCF of 11, 80, 339

1. What is the GCF of 21, 45, 711?

Answer: GCF of 21, 45, 711 is 3.

2. How to Find the GCF of 21, 45, 711

Answer: Greatest Common Factor(GCF) of 21, 45, 711 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 45, 711) = 3.