Greatest Common Factor of 31, 65, 64, 19, 840

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

• Greatest Common Factor of 31, 65, 64, 19, 840 by common division method
• Greatest Common Factor of 31, 65, 64, 19, 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 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

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 31,65,64,19,840 . The biggest common factor number is the GCF number.
So the greatest common factor 31,65,64,19,840 is 1.

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

• GCF of 85, 76, 40, 28, 315
• GCF of 22, 11, 96, 36, 366
• GCF of 35, 11, 11, 43, 507
• GCF of 83, 20, 40, 57, 337
• GCF of 77, 75, 25, 55, 596

1. What is the GCF of 31, 65, 64, 19, 840?

Answer: GCF of 31, 65, 64, 19, 840 is 1.

2. How to Find the GCF of 31, 65, 64, 19, 840

Answer: Greatest Common Factor(GCF) of 31, 65, 64, 19, 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, 64, 19, 840) = 1.