Greatest Common Factor of 30, 68, 10, 420

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

• Greatest Common Factor of 30, 68, 10, 420 by common division method
• Greatest Common Factor of 30, 68, 10, 420 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 = 2

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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

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

Greatest Common Factor

We found the factors 30,68,10,420 . The biggest common factor number is the GCF number.
So the greatest common factor 30,68,10,420 is 2.

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

• GCF of 58, 83, 69, 713
• GCF of 99, 66, 25, 568
• GCF of 98, 96, 10, 665
• GCF of 11, 63, 76, 602
• GCF of 98, 95, 39, 656

1. What is the GCF of 30, 68, 10, 420?

Answer: GCF of 30, 68, 10, 420 is 2.

2. How to Find the GCF of 30, 68, 10, 420

Answer: Greatest Common Factor(GCF) of 30, 68, 10, 420 = 2

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

Step 2: Then multiply all the prime factors GCF(30, 68, 10, 420) = 2.