Greatest Common Factor of 21, 75, 144

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

• Greatest Common Factor of 21, 75, 144 by common division method
• Greatest Common Factor of 21, 75, 144 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 144

List of positive integer factors of 144 that divides 144 without a remainder.

1,2,3,4,6,8,9,12,16,18,24,36,48,72,144

Greatest Common Factor

We found the factors 21,75,144 . The biggest common factor number is the GCF number.
So the greatest common factor 21,75,144 is 3.

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

• GCF of 98, 47, 138
• GCF of 90, 67, 389
• GCF of 76, 11, 708
• GCF of 10, 16, 330
• GCF of 47, 18, 696

1. What is the GCF of 21, 75, 144?

Answer: GCF of 21, 75, 144 is 3.

2. How to Find the GCF of 21, 75, 144

Answer: Greatest Common Factor(GCF) of 21, 75, 144 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 75, 144) = 3.