Greatest Common Factor of 42, 390, 249

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

• Greatest Common Factor of 42, 390, 249 by common division method
• Greatest Common Factor of 42, 390, 249 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 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Factors of 249

List of positive integer factors of 249 that divides 249 without a remainder.

1,3,83,249

Greatest Common Factor

We found the factors 42,390,249 . The biggest common factor number is the GCF number.
So the greatest common factor 42,390,249 is 3.

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

• GCF of 45, 895, 384
• GCF of 77, 581, 826
• GCF of 64, 381, 710
• GCF of 15, 804, 608
• GCF of 39, 875, 117

1. What is the GCF of 42, 390, 249?

Answer: GCF of 42, 390, 249 is 3.

2. How to Find the GCF of 42, 390, 249

Answer: Greatest Common Factor(GCF) of 42, 390, 249 = 3

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

Step 2: Then multiply all the prime factors GCF(42, 390, 249) = 3.