Greatest Common Factor of 81, 690, 390

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

• Greatest Common Factor of 81, 690, 390 by common division method
• Greatest Common Factor of 81, 690, 390 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 81

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

1,3,9,27,81

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

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

Greatest Common Factor

We found the factors 81,690,390 . The biggest common factor number is the GCF number.
So the greatest common factor 81,690,390 is 3.

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

• GCF of 41, 306, 906
• GCF of 91, 966, 823
• GCF of 31, 384, 436
• GCF of 95, 609, 916
• GCF of 63, 645, 330

1. What is the GCF of 81, 690, 390?

Answer: GCF of 81, 690, 390 is 3.

2. How to Find the GCF of 81, 690, 390

Answer: Greatest Common Factor(GCF) of 81, 690, 390 = 3

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

Step 2: Then multiply all the prime factors GCF(81, 690, 390) = 3.