Greatest Common Factor of 645, 123, 489

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

• Greatest Common Factor of 645, 123, 489 by common division method
• Greatest Common Factor of 645, 123, 489 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 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Factors of 489

List of positive integer factors of 489 that divides 489 without a remainder.

1,3,163,489

Greatest Common Factor

We found the factors 645,123,489 . The biggest common factor number is the GCF number.
So the greatest common factor 645,123,489 is 3.

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

• GCF of 360, 214, 854
• GCF of 643, 258, 455
• GCF of 648, 819, 371
• GCF of 671, 428, 991
• GCF of 181, 627, 806

1. What is the GCF of 645, 123, 489?

Answer: GCF of 645, 123, 489 is 3.

2. How to Find the GCF of 645, 123, 489

Answer: Greatest Common Factor(GCF) of 645, 123, 489 = 3

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

Step 2: Then multiply all the prime factors GCF(645, 123, 489) = 3.