Greatest Common Factor of 21, 49, 231

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

• Greatest Common Factor of 21, 49, 231 by common division method
• Greatest Common Factor of 21, 49, 231 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 7 = 7

Factors of 21

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

1,3,7,21

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 231

List of positive integer factors of 231 that divides 231 without a remainder.

1,3,7,11,21,33,77,231

Greatest Common Factor

We found the factors 21,49,231 . The biggest common factor number is the GCF number.
So the greatest common factor 21,49,231 is 7.

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

• GCF of 49, 89, 528
• GCF of 49, 38, 907
• GCF of 87, 17, 846
• GCF of 50, 79, 780
• GCF of 96, 70, 421

1. What is the GCF of 21, 49, 231?

Answer: GCF of 21, 49, 231 is 7.

2. How to Find the GCF of 21, 49, 231

Answer: Greatest Common Factor(GCF) of 21, 49, 231 = 7

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

Step 2: Then multiply all the prime factors GCF(21, 49, 231) = 7.