Greatest Common Factor of 12, 390, 840

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

• Greatest Common Factor of 12, 390, 840 by common division method
• Greatest Common Factor of 12, 390, 840 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Factors of 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Greatest Common Factor

We found the factors 12,390,840 . The biggest common factor number is the GCF number.
So the greatest common factor 12,390,840 is 6.

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

• GCF of 81, 320, 702
• GCF of 82, 303, 561
• GCF of 53, 594, 770
• GCF of 71, 506, 199
• GCF of 45, 449, 984

1. What is the GCF of 12, 390, 840?

Answer: GCF of 12, 390, 840 is 6.

2. How to Find the GCF of 12, 390, 840

Answer: Greatest Common Factor(GCF) of 12, 390, 840 = 6

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

Step 2: Then multiply all the prime factors GCF(12, 390, 840) = 6.