Greatest Common Factor of 249, 162, 21

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

• Greatest Common Factor of 249, 162, 21 by common division method
• Greatest Common Factor of 249, 162, 21 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 249

List of positive integer factors of 249 that divides 249 without a remainder.

1,3,83,249

Factors of 162

List of positive integer factors of 162 that divides 162 without a remainder.

1,2,3,6,9,18,27,54,81,162

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 249,162,21 . The biggest common factor number is the GCF number.
So the greatest common factor 249,162,21 is 3.

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

• GCF of 929, 356, 79
• GCF of 325, 861, 16
• GCF of 516, 909, 48
• GCF of 318, 475, 17
• GCF of 112, 300, 74

1. What is the GCF of 249, 162, 21?

Answer: GCF of 249, 162, 21 is 3.

2. How to Find the GCF of 249, 162, 21

Answer: Greatest Common Factor(GCF) of 249, 162, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(249, 162, 21) = 3.