Greatest Common Factor of 64, 81, 91, 320

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

• Greatest Common Factor of 64, 81, 91, 320 by common division method
• Greatest Common Factor of 64, 81, 91, 320 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 64

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

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

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 91

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

1,7,13,91

Factors of 320

List of positive integer factors of 320 that divides 320 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,160,320

Greatest Common Factor

We found the factors 64,81,91,320 . The biggest common factor number is the GCF number.
So the greatest common factor 64,81,91,320 is 1.

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

• GCF of 25, 24, 58, 197
• GCF of 32, 63, 81, 693
• GCF of 67, 87, 43, 501
• GCF of 47, 92, 14, 239
• GCF of 27, 15, 21, 329

1. What is the GCF of 64, 81, 91, 320?

Answer: GCF of 64, 81, 91, 320 is 1.

2. How to Find the GCF of 64, 81, 91, 320

Answer: Greatest Common Factor(GCF) of 64, 81, 91, 320 = 1

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

Step 2: Then multiply all the prime factors GCF(64, 81, 91, 320) = 1.