Greatest Common Factor of 12, 99, 83, 645

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

• Greatest Common Factor of 12, 99, 83, 645 by common division method
• Greatest Common Factor of 12, 99, 83, 645 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 99

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

1,3,9,11,33,99

Factors of 83

List of positive integer factors of 83 that divides 83 without a remainder.

1,83

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Greatest Common Factor

We found the factors 12,99,83,645 . The biggest common factor number is the GCF number.
So the greatest common factor 12,99,83,645 is 1.

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

• GCF of 27, 81, 16, 693
• GCF of 84, 92, 48, 158
• GCF of 56, 48, 18, 586
• GCF of 45, 18, 93, 202
• GCF of 33, 26, 14, 738

1. What is the GCF of 12, 99, 83, 645?

Answer: GCF of 12, 99, 83, 645 is 1.

2. How to Find the GCF of 12, 99, 83, 645

Answer: Greatest Common Factor(GCF) of 12, 99, 83, 645 = 1

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

Step 2: Then multiply all the prime factors GCF(12, 99, 83, 645) = 1.