Greatest Common Factor of 21, 88, 78, 816

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

• Greatest Common Factor of 21, 88, 78, 816 by common division method
• Greatest Common Factor of 21, 88, 78, 816 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 21

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

1,3,7,21

Factors of 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

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 816

List of positive integer factors of 816 that divides 816 without a remainder.

1,2,3,4,6,8,12,16,17,24,34,48,51,68,102,136,204,272,408,816

Greatest Common Factor

We found the factors 21,88,78,816 . The biggest common factor number is the GCF number.
So the greatest common factor 21,88,78,816 is 1.

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

• GCF of 56, 56, 78, 851
• GCF of 61, 46, 11, 534
• GCF of 40, 44, 75, 878
• GCF of 58, 44, 49, 626
• GCF of 91, 84, 16, 232

1. What is the GCF of 21, 88, 78, 816?

Answer: GCF of 21, 88, 78, 816 is 1.

2. How to Find the GCF of 21, 88, 78, 816

Answer: Greatest Common Factor(GCF) of 21, 88, 78, 816 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 88, 78, 816) = 1.