Greatest Common Factor of 40, 81, 30, 60

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

• Greatest Common Factor of 40, 81, 30, 60 by common division method
• Greatest Common Factor of 40, 81, 30, 60 with matching the biggest common factor

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

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 81

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

1,3,9,27,81

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 60

List of positive integer factors of 60 that divides 60 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60

Greatest Common Factor

We found the factors 40,81,30,60 . The biggest common factor number is the GCF number.
So the greatest common factor 40,81,30,60 is 1.

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

• GCF of 64, 85, 95, 26
• GCF of 30, 27, 71, 75
• GCF of 19, 23, 89, 95
• GCF of 13, 59, 29, 75
• GCF of 43, 95, 31, 77

1. What is the GCF of 40, 81, 30, 60?

Answer: GCF of 40, 81, 30, 60 is 1.

2. How to Find the GCF of 40, 81, 30, 60

Answer: Greatest Common Factor(GCF) of 40, 81, 30, 60 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 81, 30, 60) = 1.