Greatest Common Factor of 28, 21, 23, 940

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

• Greatest Common Factor of 28, 21, 23, 940 by common division method
• Greatest Common Factor of 28, 21, 23, 940 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 28

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

1,2,4,7,14,28

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 940

List of positive integer factors of 940 that divides 940 without a remainder.

1,2,4,5,10,20,47,94,188,235,470,940

Greatest Common Factor

We found the factors 28,21,23,940 . The biggest common factor number is the GCF number.
So the greatest common factor 28,21,23,940 is 1.

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

• GCF of 49, 16, 78, 750
• GCF of 21, 40, 17, 447
• GCF of 49, 58, 78, 695
• GCF of 15, 94, 94, 271
• GCF of 34, 30, 23, 145

1. What is the GCF of 28, 21, 23, 940?

Answer: GCF of 28, 21, 23, 940 is 1.

2. How to Find the GCF of 28, 21, 23, 940

Answer: Greatest Common Factor(GCF) of 28, 21, 23, 940 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 21, 23, 940) = 1.