Greatest Common Factor of 28, 90, 12, 11, 28

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

• Greatest Common Factor of 28, 90, 12, 11, 28 by common division method
• Greatest Common Factor of 28, 90, 12, 11, 28 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 28

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

1,2,4,7,14,28

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 28

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

1,2,4,7,14,28

Greatest Common Factor

We found the factors 28,90,12,11,28 . The biggest common factor number is the GCF number.
So the greatest common factor 28,90,12,11,28 is 1.

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

• GCF of 11, 48, 65, 59, 54
• GCF of 10, 85, 72, 94, 40
• GCF of 88, 87, 16, 32, 34
• GCF of 80, 64, 15, 33, 15
• GCF of 41, 33, 66, 36, 71

1. What is the GCF of 28, 90, 12, 11, 28?

Answer: GCF of 28, 90, 12, 11, 28 is 1.

2. How to Find the GCF of 28, 90, 12, 11, 28

Answer: Greatest Common Factor(GCF) of 28, 90, 12, 11, 28 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 90, 12, 11, 28) = 1.