Greatest Common Factor of 42, 609, 840

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

• Greatest Common Factor of 42, 609, 840 by common division method
• Greatest Common Factor of 42, 609, 840 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 x 7 = 21

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 609

List of positive integer factors of 609 that divides 609 without a remainder.

1,3,7,21,29,87,203,609

Factors of 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Greatest Common Factor

We found the factors 42,609,840 . The biggest common factor number is the GCF number.
So the greatest common factor 42,609,840 is 21.

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

• GCF of 68, 196, 527
• GCF of 73, 736, 359
• GCF of 85, 749, 147
• GCF of 89, 926, 995
• GCF of 66, 270, 493

1. What is the GCF of 42, 609, 840?

Answer: GCF of 42, 609, 840 is 21.

2. How to Find the GCF of 42, 609, 840

Answer: Greatest Common Factor(GCF) of 42, 609, 840 = 21

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

Step 2: Then multiply all the prime factors GCF(42, 609, 840) = 21.