Greatest Common Factor of 40, 42, 16, 666

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

• Greatest Common Factor of 40, 42, 16, 666 by common division method
• Greatest Common Factor of 40, 42, 16, 666 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 = 2

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

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 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 666

List of positive integer factors of 666 that divides 666 without a remainder.

1,2,3,6,9,18,37,74,111,222,333,666

Greatest Common Factor

We found the factors 40,42,16,666 . The biggest common factor number is the GCF number.
So the greatest common factor 40,42,16,666 is 2.

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

• GCF of 67, 74, 13, 178
• GCF of 73, 55, 71, 629
• GCF of 32, 78, 39, 325
• GCF of 94, 19, 18, 143
• GCF of 34, 74, 91, 166

1. What is the GCF of 40, 42, 16, 666?

Answer: GCF of 40, 42, 16, 666 is 2.

2. How to Find the GCF of 40, 42, 16, 666

Answer: Greatest Common Factor(GCF) of 40, 42, 16, 666 = 2

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

Step 2: Then multiply all the prime factors GCF(40, 42, 16, 666) = 2.