Greatest Common Factor of 724, 789, 21

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

• Greatest Common Factor of 724, 789, 21 by common division method
• Greatest Common Factor of 724, 789, 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 724

List of positive integer factors of 724 that divides 724 without a remainder.

1,2,4,181,362,724

Factors of 789

List of positive integer factors of 789 that divides 789 without a remainder.

1,3,263,789

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 724,789,21 . The biggest common factor number is the GCF number.
So the greatest common factor 724,789,21 is 1.

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

• GCF of 766, 871, 66
• GCF of 470, 436, 28
• GCF of 628, 875, 25
• GCF of 208, 143, 74
• GCF of 102, 929, 60

1. What is the GCF of 724, 789, 21?

Answer: GCF of 724, 789, 21 is 1.

2. How to Find the GCF of 724, 789, 21

Answer: Greatest Common Factor(GCF) of 724, 789, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(724, 789, 21) = 1.