Greatest Common Factor of 420, 378, 428

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

• Greatest Common Factor of 420, 378, 428 by common division method
• Greatest Common Factor of 420, 378, 428 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 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 378

List of positive integer factors of 378 that divides 378 without a remainder.

1,2,3,6,7,9,14,18,21,27,42,54,63,126,189,378

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors 420,378,428 . The biggest common factor number is the GCF number.
So the greatest common factor 420,378,428 is 2.

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

• GCF of 308, 807, 170
• GCF of 737, 662, 799
• GCF of 770, 469, 702
• GCF of 379, 726, 670
• GCF of 343, 257, 640

1. What is the GCF of 420, 378, 428?

Answer: GCF of 420, 378, 428 is 2.

2. How to Find the GCF of 420, 378, 428

Answer: Greatest Common Factor(GCF) of 420, 378, 428 = 2

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

Step 2: Then multiply all the prime factors GCF(420, 378, 428) = 2.