Greatest Common Factor of 56, 63, 420

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

• Greatest Common Factor of 56, 63, 420 by common division method
• Greatest Common Factor of 56, 63, 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 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

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 56,63,420 . The biggest common factor number is the GCF number.
So the greatest common factor 56,63,420 is 7.

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

• GCF of 30, 78, 133
• GCF of 41, 18, 560
• GCF of 26, 56, 856
• GCF of 57, 57, 554
• GCF of 32, 49, 453

1. What is the GCF of 56, 63, 420?

Answer: GCF of 56, 63, 420 is 7.

2. How to Find the GCF of 56, 63, 420

Answer: Greatest Common Factor(GCF) of 56, 63, 420 = 7

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

Step 2: Then multiply all the prime factors GCF(56, 63, 420) = 7.