Greatest Common Factor of 66, 42, 57, 423

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

• Greatest Common Factor of 66, 42, 57, 423 by common division method
• Greatest Common Factor of 66, 42, 57, 423 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

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 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

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 66,42,57,423 . The biggest common factor number is the GCF number.
So the greatest common factor 66,42,57,423 is 3.

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

• GCF of 94, 92, 81, 571
• GCF of 80, 61, 29, 273
• GCF of 60, 10, 30, 816
• GCF of 38, 11, 57, 265
• GCF of 22, 76, 53, 361

1. What is the GCF of 66, 42, 57, 423?

Answer: GCF of 66, 42, 57, 423 is 3.

2. How to Find the GCF of 66, 42, 57, 423

Answer: Greatest Common Factor(GCF) of 66, 42, 57, 423 = 3

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

Step 2: Then multiply all the prime factors GCF(66, 42, 57, 423) = 3.