Greatest Common Factor of 21, 36, 42, 336

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

• Greatest Common Factor of 21, 36, 42, 336 by common division method
• Greatest Common Factor of 21, 36, 42, 336 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 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 336

List of positive integer factors of 336 that divides 336 without a remainder.

1,2,3,4,6,7,8,12,14,16,21,24,28,42,48,56,84,112,168,336

Greatest Common Factor

We found the factors 21,36,42,336 . The biggest common factor number is the GCF number.
So the greatest common factor 21,36,42,336 is 3.

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

• GCF of 94, 24, 99, 147
• GCF of 85, 81, 28, 853
• GCF of 96, 99, 41, 720
• GCF of 74, 31, 89, 364
• GCF of 54, 58, 47, 822

1. What is the GCF of 21, 36, 42, 336?

Answer: GCF of 21, 36, 42, 336 is 3.

2. How to Find the GCF of 21, 36, 42, 336

Answer: Greatest Common Factor(GCF) of 21, 36, 42, 336 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 36, 42, 336) = 3.