Greatest Common Factor of 31, 65, 66, 840

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

• Greatest Common Factor of 31, 65, 66, 840 by common division method
• Greatest Common Factor of 31, 65, 66, 840 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

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 31,65,66,840 . The biggest common factor number is the GCF number.
So the greatest common factor 31,65,66,840 is 1.

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

• GCF of 20, 22, 48, 488
• GCF of 33, 56, 98, 957
• GCF of 55, 82, 53, 909
• GCF of 52, 45, 86, 131
• GCF of 80, 92, 85, 472

1. What is the GCF of 31, 65, 66, 840?

Answer: GCF of 31, 65, 66, 840 is 1.

2. How to Find the GCF of 31, 65, 66, 840

Answer: Greatest Common Factor(GCF) of 31, 65, 66, 840 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 65, 66, 840) = 1.