Greatest Common Factor of 91, 85, 40, 49

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

• Greatest Common Factor of 91, 85, 40, 49 by common division method
• Greatest Common Factor of 91, 85, 40, 49 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 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Greatest Common Factor

We found the factors 91,85,40,49 . The biggest common factor number is the GCF number.
So the greatest common factor 91,85,40,49 is 1.

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

• GCF of 68, 92, 51, 36
• GCF of 98, 92, 85, 86
• GCF of 40, 24, 20, 12
• GCF of 56, 67, 42, 68
• GCF of 56, 83, 80, 75

1. What is the GCF of 91, 85, 40, 49?

Answer: GCF of 91, 85, 40, 49 is 1.

2. How to Find the GCF of 91, 85, 40, 49

Answer: Greatest Common Factor(GCF) of 91, 85, 40, 49 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 85, 40, 49) = 1.