Greatest Common Factor of 91, 90, 61, 36

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

• Greatest Common Factor of 91, 90, 61, 36 by common division method
• Greatest Common Factor of 91, 90, 61, 36 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Greatest Common Factor

We found the factors 91,90,61,36 . The biggest common factor number is the GCF number.
So the greatest common factor 91,90,61,36 is 1.

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

• GCF of 10, 80, 17, 63
• GCF of 92, 86, 54, 78
• GCF of 63, 32, 57, 39
• GCF of 54, 42, 76, 10
• GCF of 37, 88, 28, 76

1. What is the GCF of 91, 90, 61, 36?

Answer: GCF of 91, 90, 61, 36 is 1.

2. How to Find the GCF of 91, 90, 61, 36

Answer: Greatest Common Factor(GCF) of 91, 90, 61, 36 = 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, 61, 36) = 1.