Greatest Common Factor of 805, 203, 21

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

• Greatest Common Factor of 805, 203, 21 by common division method
• Greatest Common Factor of 805, 203, 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 7 = 7

Factors of 805

List of positive integer factors of 805 that divides 805 without a remainder.

1,5,7,23,35,115,161,805

Factors of 203

List of positive integer factors of 203 that divides 203 without a remainder.

1,7,29,203

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 805,203,21 . The biggest common factor number is the GCF number.
So the greatest common factor 805,203,21 is 7.

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

• GCF of 982, 576, 30
• GCF of 991, 657, 53
• GCF of 379, 231, 60
• GCF of 419, 158, 69
• GCF of 516, 983, 82

1. What is the GCF of 805, 203, 21?

Answer: GCF of 805, 203, 21 is 7.

2. How to Find the GCF of 805, 203, 21

Answer: Greatest Common Factor(GCF) of 805, 203, 21 = 7

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

Step 2: Then multiply all the prime factors GCF(805, 203, 21) = 7.