Greatest Common Factor of 28, 35, 420

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

• Greatest Common Factor of 28, 35, 420 by common division method
• Greatest Common Factor of 28, 35, 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 7 = 7

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

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 28,35,420 . The biggest common factor number is the GCF number.
So the greatest common factor 28,35,420 is 7.

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

• GCF of 72, 53, 616
• GCF of 22, 29, 989
• GCF of 29, 33, 287
• GCF of 14, 71, 419
• GCF of 96, 62, 435

1. What is the GCF of 28, 35, 420?

Answer: GCF of 28, 35, 420 is 7.

2. How to Find the GCF of 28, 35, 420

Answer: Greatest Common Factor(GCF) of 28, 35, 420 = 7

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

Step 2: Then multiply all the prime factors GCF(28, 35, 420) = 7.