Greatest Common Factor of 28, 70, 90, 154

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

• Greatest Common Factor of 28, 70, 90, 154 by common division method
• Greatest Common Factor of 28, 70, 90, 154 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 = 2

Factors of 28

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

1,2,4,7,14,28

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

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 154

List of positive integer factors of 154 that divides 154 without a remainder.

1,2,7,11,14,22,77,154

Greatest Common Factor

We found the factors 28,70,90,154 . The biggest common factor number is the GCF number.
So the greatest common factor 28,70,90,154 is 2.

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

• GCF of 82, 88, 25, 967
• GCF of 33, 52, 39, 139
• GCF of 69, 58, 58, 716
• GCF of 50, 35, 49, 825
• GCF of 44, 87, 21, 460

1. What is the GCF of 28, 70, 90, 154?

Answer: GCF of 28, 70, 90, 154 is 2.

2. How to Find the GCF of 28, 70, 90, 154

Answer: Greatest Common Factor(GCF) of 28, 70, 90, 154 = 2

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

Step 2: Then multiply all the prime factors GCF(28, 70, 90, 154) = 2.