Greatest Common Factor of 42, 780, 399

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

• Greatest Common Factor of 42, 780, 399 by common division method
• Greatest Common Factor of 42, 780, 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 42

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

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

Factors of 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

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 42,780,399 . The biggest common factor number is the GCF number.
So the greatest common factor 42,780,399 is 3.

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

• GCF of 30, 188, 302
• GCF of 37, 355, 683
• GCF of 72, 637, 152
• GCF of 95, 574, 911
• GCF of 91, 166, 724

1. What is the GCF of 42, 780, 399?

Answer: GCF of 42, 780, 399 is 3.

2. How to Find the GCF of 42, 780, 399

Answer: Greatest Common Factor(GCF) of 42, 780, 399 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 780, 399) = 3.