Greatest Common Factor of 28, 21, 98, 133

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

• Greatest Common Factor of 28, 21, 98, 133 by common division method
• Greatest Common Factor of 28, 21, 98, 133 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 7 = 7

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 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Factors of 133

List of positive integer factors of 133 that divides 133 without a remainder.

1,7,19,133

Greatest Common Factor

We found the factors 28,21,98,133 . The biggest common factor number is the GCF number.
So the greatest common factor 28,21,98,133 is 7.

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

• GCF of 40, 29, 31, 774
• GCF of 34, 18, 25, 624
• GCF of 21, 87, 18, 692
• GCF of 33, 26, 44, 133
• GCF of 35, 81, 20, 137

1. What is the GCF of 28, 21, 98, 133?

Answer: GCF of 28, 21, 98, 133 is 7.

2. How to Find the GCF of 28, 21, 98, 133

Answer: Greatest Common Factor(GCF) of 28, 21, 98, 133 = 7

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

Step 2: Then multiply all the prime factors GCF(28, 21, 98, 133) = 7.