Greatest Common Factor of 72, 81, 30, 87

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

• Greatest Common Factor of 72, 81, 30, 87 by common division method
• Greatest Common Factor of 72, 81, 30, 87 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 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Greatest Common Factor

We found the factors 72,81,30,87 . The biggest common factor number is the GCF number.
So the greatest common factor 72,81,30,87 is 3.

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

• GCF of 65, 77, 48, 12
• GCF of 35, 57, 81, 38
• GCF of 82, 47, 84, 60
• GCF of 22, 70, 66, 63
• GCF of 16, 77, 29, 59

1. What is the GCF of 72, 81, 30, 87?

Answer: GCF of 72, 81, 30, 87 is 3.

2. How to Find the GCF of 72, 81, 30, 87

Answer: Greatest Common Factor(GCF) of 72, 81, 30, 87 = 3

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

Step 2: Then multiply all the prime factors GCF(72, 81, 30, 87) = 3.