Greatest Common Factor of 64, 42, 28, 99

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

• Greatest Common Factor of 64, 42, 28, 99 by common division method
• Greatest Common Factor of 64, 42, 28, 99 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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Greatest Common Factor

We found the factors 64,42,28,99 . The biggest common factor number is the GCF number.
So the greatest common factor 64,42,28,99 is 1.

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

• GCF of 34, 73, 13, 13
• GCF of 95, 51, 54, 99
• GCF of 96, 49, 36, 34
• GCF of 70, 23, 37, 13
• GCF of 57, 24, 99, 83

1. What is the GCF of 64, 42, 28, 99?

Answer: GCF of 64, 42, 28, 99 is 1.

2. How to Find the GCF of 64, 42, 28, 99

Answer: Greatest Common Factor(GCF) of 64, 42, 28, 99 = 1

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

Step 2: Then multiply all the prime factors GCF(64, 42, 28, 99) = 1.