Greatest Common Factor of 840, 280, 68

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

• Greatest Common Factor of 840, 280, 68 by common division method
• Greatest Common Factor of 840, 280, 68 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 2 = 4

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

Factors of 280

List of positive integer factors of 280 that divides 280 without a remainder.

1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Greatest Common Factor

We found the factors 840,280,68 . The biggest common factor number is the GCF number.
So the greatest common factor 840,280,68 is 4.

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

• GCF of 757, 132, 17
• GCF of 225, 909, 25
• GCF of 708, 979, 90
• GCF of 411, 917, 54
• GCF of 438, 501, 34

1. What is the GCF of 840, 280, 68?

Answer: GCF of 840, 280, 68 is 4.

2. How to Find the GCF of 840, 280, 68

Answer: Greatest Common Factor(GCF) of 840, 280, 68 = 4

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

Step 2: Then multiply all the prime factors GCF(840, 280, 68) = 4.