Greatest Common Factor of 642, 555, 561

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

• Greatest Common Factor of 642, 555, 561 by common division method
• Greatest Common Factor of 642, 555, 561 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 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Factors of 555

List of positive integer factors of 555 that divides 555 without a remainder.

1,3,5,15,37,111,185,555

Factors of 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Greatest Common Factor

We found the factors 642,555,561 . The biggest common factor number is the GCF number.
So the greatest common factor 642,555,561 is 3.

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

• GCF of 110, 897, 324
• GCF of 575, 106, 636
• GCF of 687, 831, 493
• GCF of 252, 758, 159
• GCF of 385, 673, 622

1. What is the GCF of 642, 555, 561?

Answer: GCF of 642, 555, 561 is 3.

2. How to Find the GCF of 642, 555, 561

Answer: Greatest Common Factor(GCF) of 642, 555, 561 = 3

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

Step 2: Then multiply all the prime factors GCF(642, 555, 561) = 3.