Greatest Common Factor of 72, 21, 57, 399

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

• Greatest Common Factor of 72, 21, 57, 399 by common division method
• Greatest Common Factor of 72, 21, 57, 399 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 21

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

1,3,7,21

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 399

List of positive integer factors of 399 that divides 399 without a remainder.

1,3,7,19,21,57,133,399

Greatest Common Factor

We found the factors 72,21,57,399 . The biggest common factor number is the GCF number.
So the greatest common factor 72,21,57,399 is 3.

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

• GCF of 58, 33, 32, 671
• GCF of 10, 23, 58, 383
• GCF of 52, 60, 55, 314
• GCF of 17, 37, 84, 924
• GCF of 44, 74, 79, 268

1. What is the GCF of 72, 21, 57, 399?

Answer: GCF of 72, 21, 57, 399 is 3.

2. How to Find the GCF of 72, 21, 57, 399

Answer: Greatest Common Factor(GCF) of 72, 21, 57, 399 = 3

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

Step 2: Then multiply all the prime factors GCF(72, 21, 57, 399) = 3.