Greatest Common Factor of 71, 72, 21, 591

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

• Greatest Common Factor of 71, 72, 21, 591 by common division method
• Greatest Common Factor of 71, 72, 21, 591 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 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 21

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

1,3,7,21

Factors of 591

List of positive integer factors of 591 that divides 591 without a remainder.

1,3,197,591

Greatest Common Factor

We found the factors 71,72,21,591 . The biggest common factor number is the GCF number.
So the greatest common factor 71,72,21,591 is 1.

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

• GCF of 14, 10, 93, 154
• GCF of 54, 74, 87, 663
• GCF of 38, 77, 95, 926
• GCF of 75, 43, 55, 289
• GCF of 83, 59, 75, 768

1. What is the GCF of 71, 72, 21, 591?

Answer: GCF of 71, 72, 21, 591 is 1.

2. How to Find the GCF of 71, 72, 21, 591

Answer: Greatest Common Factor(GCF) of 71, 72, 21, 591 = 1

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

Step 2: Then multiply all the prime factors GCF(71, 72, 21, 591) = 1.