Greatest Common Factor of 420, 639, 999

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

• Greatest Common Factor of 420, 639, 999 by common division method
• Greatest Common Factor of 420, 639, 999 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 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 639

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

1,3,9,71,213,639

Factors of 999

List of positive integer factors of 999 that divides 999 without a remainder.

1,3,9,27,37,111,333,999

Greatest Common Factor

We found the factors 420,639,999 . The biggest common factor number is the GCF number.
So the greatest common factor 420,639,999 is 3.

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

• GCF of 309, 463, 261
• GCF of 562, 285, 751
• GCF of 871, 219, 513
• GCF of 300, 502, 105
• GCF of 549, 595, 794

1. What is the GCF of 420, 639, 999?

Answer: GCF of 420, 639, 999 is 3.

2. How to Find the GCF of 420, 639, 999

Answer: Greatest Common Factor(GCF) of 420, 639, 999 = 3

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

Step 2: Then multiply all the prime factors GCF(420, 639, 999) = 3.