Greatest Common Factor of 91, 90, 76, 28

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

• Greatest Common Factor of 91, 90, 76, 28 by common division method
• Greatest Common Factor of 91, 90, 76, 28 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 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

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 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

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 91,90,76,28 . The biggest common factor number is the GCF number.
So the greatest common factor 91,90,76,28 is 1.

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

• GCF of 50, 84, 44, 26
• GCF of 19, 77, 78, 81
• GCF of 55, 83, 36, 92
• GCF of 53, 90, 99, 99
• GCF of 57, 42, 56, 67

1. What is the GCF of 91, 90, 76, 28?

Answer: GCF of 91, 90, 76, 28 is 1.

2. How to Find the GCF of 91, 90, 76, 28

Answer: Greatest Common Factor(GCF) of 91, 90, 76, 28 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 90, 76, 28) = 1.