Greatest Common Factor of 18, 30, 780

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

• Greatest Common Factor of 18, 30, 780 by common division method
• Greatest Common Factor of 18, 30, 780 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 x 3 = 6

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

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 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Greatest Common Factor

We found the factors 18,30,780 . The biggest common factor number is the GCF number.
So the greatest common factor 18,30,780 is 6.

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

• GCF of 20, 85, 264
• GCF of 96, 64, 302
• GCF of 11, 29, 114
• GCF of 73, 58, 118
• GCF of 28, 71, 844

1. What is the GCF of 18, 30, 780?

Answer: GCF of 18, 30, 780 is 6.

2. How to Find the GCF of 18, 30, 780

Answer: Greatest Common Factor(GCF) of 18, 30, 780 = 6

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

Step 2: Then multiply all the prime factors GCF(18, 30, 780) = 6.