Greatest Common Factor of 78, 42, 87, 900

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

• Greatest Common Factor of 78, 42, 87, 900 by common division method
• Greatest Common Factor of 78, 42, 87, 900 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

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

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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 900

List of positive integer factors of 900 that divides 900 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,25,30,36,45,50,60,75,90,100,150,180,225,300,450,900

Greatest Common Factor

We found the factors 78,42,87,900 . The biggest common factor number is the GCF number.
So the greatest common factor 78,42,87,900 is 3.

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

• GCF of 61, 19, 18, 143
• GCF of 64, 72, 63, 596
• GCF of 39, 82, 92, 271
• GCF of 25, 55, 63, 413
• GCF of 43, 85, 94, 256

1. What is the GCF of 78, 42, 87, 900?

Answer: GCF of 78, 42, 87, 900 is 3.

2. How to Find the GCF of 78, 42, 87, 900

Answer: Greatest Common Factor(GCF) of 78, 42, 87, 900 = 3

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

Step 2: Then multiply all the prime factors GCF(78, 42, 87, 900) = 3.