Greatest Common Factor of 820, 638, 840

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

• Greatest Common Factor of 820, 638, 840 by common division method
• Greatest Common Factor of 820, 638, 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 = 2

Factors of 820

List of positive integer factors of 820 that divides 820 without a remainder.

1,2,4,5,10,20,41,82,164,205,410,820

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

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 820,638,840 . The biggest common factor number is the GCF number.
So the greatest common factor 820,638,840 is 2.

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

• GCF of 352, 878, 300
• GCF of 580, 302, 931
• GCF of 132, 457, 372
• GCF of 687, 449, 507
• GCF of 399, 381, 944

1. What is the GCF of 820, 638, 840?

Answer: GCF of 820, 638, 840 is 2.

2. How to Find the GCF of 820, 638, 840

Answer: Greatest Common Factor(GCF) of 820, 638, 840 = 2

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

Step 2: Then multiply all the prime factors GCF(820, 638, 840) = 2.