Greatest Common Factor of 21, 23, 48, 480

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

• Greatest Common Factor of 21, 23, 48, 480 by common division method
• Greatest Common Factor of 21, 23, 48, 480 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 48

List of positive integer factors of 48 that divides 48 without a remainder.

1,2,3,4,6,8,12,16,24,48

Factors of 480

List of positive integer factors of 480 that divides 480 without a remainder.

1,2,3,4,5,6,8,10,12,15,16,20,24,30,32,40,48,60,80,96,120,160,240,480

Greatest Common Factor

We found the factors 21,23,48,480 . The biggest common factor number is the GCF number.
So the greatest common factor 21,23,48,480 is 1.

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

• GCF of 40, 60, 93, 386
• GCF of 51, 90, 63, 292
• GCF of 31, 55, 31, 804
• GCF of 75, 58, 97, 317
• GCF of 89, 75, 62, 555

1. What is the GCF of 21, 23, 48, 480?

Answer: GCF of 21, 23, 48, 480 is 1.

2. How to Find the GCF of 21, 23, 48, 480

Answer: Greatest Common Factor(GCF) of 21, 23, 48, 480 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 23, 48, 480) = 1.