Greatest Common Factor of 23, 20, 57, 85

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

• Greatest Common Factor of 23, 20, 57, 85 by common division method
• Greatest Common Factor of 23, 20, 57, 85 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Greatest Common Factor

We found the factors 23,20,57,85 . The biggest common factor number is the GCF number.
So the greatest common factor 23,20,57,85 is 1.

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

• GCF of 47, 61, 74, 68
• GCF of 55, 85, 16, 61
• GCF of 33, 22, 13, 15
• GCF of 75, 75, 65, 86
• GCF of 41, 12, 26, 40

1. What is the GCF of 23, 20, 57, 85?

Answer: GCF of 23, 20, 57, 85 is 1.

2. How to Find the GCF of 23, 20, 57, 85

Answer: Greatest Common Factor(GCF) of 23, 20, 57, 85 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 20, 57, 85) = 1.