Greatest Common Factor of 40, 78, 90, 678

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

• Greatest Common Factor of 40, 78, 90, 678 by common division method
• Greatest Common Factor of 40, 78, 90, 678 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 678

List of positive integer factors of 678 that divides 678 without a remainder.

1,2,3,6,113,226,339,678

Greatest Common Factor

We found the factors 40,78,90,678 . The biggest common factor number is the GCF number.
So the greatest common factor 40,78,90,678 is 2.

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

• GCF of 47, 97, 55, 555
• GCF of 88, 85, 87, 343
• GCF of 37, 25, 67, 814
• GCF of 27, 84, 81, 929
• GCF of 18, 69, 87, 448

1. What is the GCF of 40, 78, 90, 678?

Answer: GCF of 40, 78, 90, 678 is 2.

2. How to Find the GCF of 40, 78, 90, 678

Answer: Greatest Common Factor(GCF) of 40, 78, 90, 678 = 2

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

Step 2: Then multiply all the prime factors GCF(40, 78, 90, 678) = 2.