Greatest Common Factor of 30, 69, 639

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

• Greatest Common Factor of 30, 69, 639 by common division method
• Greatest Common Factor of 30, 69, 639 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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 639

List of positive integer factors of 639 that divides 639 without a remainder.

1,3,9,71,213,639

Greatest Common Factor

We found the factors 30,69,639 . The biggest common factor number is the GCF number.
So the greatest common factor 30,69,639 is 3.

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

• GCF of 49, 70, 926
• GCF of 51, 94, 837
• GCF of 60, 89, 100
• GCF of 38, 98, 508
• GCF of 71, 91, 220

1. What is the GCF of 30, 69, 639?

Answer: GCF of 30, 69, 639 is 3.

2. How to Find the GCF of 30, 69, 639

Answer: Greatest Common Factor(GCF) of 30, 69, 639 = 3

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

Step 2: Then multiply all the prime factors GCF(30, 69, 639) = 3.