Greatest Common Factor of 91, 20, 33, 90

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

• Greatest Common Factor of 91, 20, 33, 90 by common division method
• Greatest Common Factor of 91, 20, 33, 90 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 33

List of positive integer factors of 33 that divides 33 without a remainder.

1,3,11,33

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

Greatest Common Factor

We found the factors 91,20,33,90 . The biggest common factor number is the GCF number.
So the greatest common factor 91,20,33,90 is 1.

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

• GCF of 31, 13, 32, 20
• GCF of 97, 11, 90, 36
• GCF of 14, 95, 37, 70
• GCF of 15, 81, 86, 58
• GCF of 78, 13, 19, 21

1. What is the GCF of 91, 20, 33, 90?

Answer: GCF of 91, 20, 33, 90 is 1.

2. How to Find the GCF of 91, 20, 33, 90

Answer: Greatest Common Factor(GCF) of 91, 20, 33, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 20, 33, 90) = 1.