Greatest Common Factor of 21, 10, 28, 331

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

• Greatest Common Factor of 21, 10, 28, 331 by common division method
• Greatest Common Factor of 21, 10, 28, 331 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 28

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

1,2,4,7,14,28

Factors of 331

List of positive integer factors of 331 that divides 331 without a remainder.

1,331

Greatest Common Factor

We found the factors 21,10,28,331 . The biggest common factor number is the GCF number.
So the greatest common factor 21,10,28,331 is 1.

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

• GCF of 56, 21, 67, 987
• GCF of 23, 48, 98, 532
• GCF of 93, 91, 45, 345
• GCF of 75, 32, 17, 622
• GCF of 77, 30, 86, 262

1. What is the GCF of 21, 10, 28, 331?

Answer: GCF of 21, 10, 28, 331 is 1.

2. How to Find the GCF of 21, 10, 28, 331

Answer: Greatest Common Factor(GCF) of 21, 10, 28, 331 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 10, 28, 331) = 1.