Greatest Common Factor of 12, 55, 45, 423

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

• Greatest Common Factor of 12, 55, 45, 423 by common division method
• Greatest Common Factor of 12, 55, 45, 423 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 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 423

List of positive integer factors of 423 that divides 423 without a remainder.

1,3,9,47,141,423

Greatest Common Factor

We found the factors 12,55,45,423 . The biggest common factor number is the GCF number.
So the greatest common factor 12,55,45,423 is 1.

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

• GCF of 75, 10, 28, 833
• GCF of 44, 64, 43, 402
• GCF of 64, 99, 19, 650
• GCF of 45, 67, 41, 833
• GCF of 54, 18, 54, 177

1. What is the GCF of 12, 55, 45, 423?

Answer: GCF of 12, 55, 45, 423 is 1.

2. How to Find the GCF of 12, 55, 45, 423

Answer: Greatest Common Factor(GCF) of 12, 55, 45, 423 = 1

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

Step 2: Then multiply all the prime factors GCF(12, 55, 45, 423) = 1.