Greatest Common Factor of 81, 31, 70, 4

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

• Greatest Common Factor of 81, 31, 70, 4 by common division method
• Greatest Common Factor of 81, 31, 70, 4 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 31

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

1,31

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 4

List of positive integer factors of 4 that divides 4 without a remainder.

1,2,4

Greatest Common Factor

We found the factors 81,31,70,4 . The biggest common factor number is the GCF number.
So the greatest common factor 81,31,70,4 is 1.

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

• GCF of 83, 12, 50, 4
• GCF of 56, 12, 24, 1
• GCF of 70, 53, 65, 7
• GCF of 25, 95, 56, 7
• GCF of 51, 39, 98, 1

1. What is the GCF of 81, 31, 70, 4?

Answer: GCF of 81, 31, 70, 4 is 1.

2. How to Find the GCF of 81, 31, 70, 4

Answer: Greatest Common Factor(GCF) of 81, 31, 70, 4 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 31, 70, 4) = 1.