Greatest Common Factor of 21, 5600, 123

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

• Greatest Common Factor of 21, 5600, 123 by common division method
• Greatest Common Factor of 21, 5600, 123 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 5600

List of positive integer factors of 5600 that divides 5600 without a remainder.

1,2,4,5,7,8,10,14,16,20,25,28,32,35,40,50,56,70,80,100,112,140,160,175,200,224,280,350,400,560,700,800,1120,1400,2800,5600

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Greatest Common Factor

We found the factors 21,5600,123 . The biggest common factor number is the GCF number.
So the greatest common factor 21,5600,123 is 1.

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

• GCF of 43, 7883, 234
• GCF of 13, 5376, 757
• GCF of 65, 5348, 201
• GCF of 48, 6950, 620
• GCF of 17, 7705, 894

1. What is the GCF of 21, 5600, 123?

Answer: GCF of 21, 5600, 123 is 1.

2. How to Find the GCF of 21, 5600, 123

Answer: Greatest Common Factor(GCF) of 21, 5600, 123 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 5600, 123) = 1.