Greatest Common Factor of 91, 64, 97, 21

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

• Greatest Common Factor of 91, 64, 97, 21 by common division method
• Greatest Common Factor of 91, 64, 97, 21 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ 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 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Greatest Common Factor

We found the factors 91,64,97,21 . The biggest common factor number is the GCF number.
So the greatest common factor 91,64,97,21 is 1.

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

• GCF of 89, 49, 36, 27
• GCF of 40, 63, 34, 84
• GCF of 91, 57, 33, 16
• GCF of 84, 87, 41, 34
• GCF of 16, 59, 37, 34

1. What is the GCF of 91, 64, 97, 21?

Answer: GCF of 91, 64, 97, 21 is 1.

2. How to Find the GCF of 91, 64, 97, 21

Answer: Greatest Common Factor(GCF) of 91, 64, 97, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 64, 97, 21) = 1.