Greatest Common Factor of 15, 35, 60, 81

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

• Greatest Common Factor of 15, 35, 60, 81 by common division method
• Greatest Common Factor of 15, 35, 60, 81 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

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

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 15,35,60,81 . The biggest common factor number is the GCF number.
So the greatest common factor 15,35,60,81 is 1.

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

• GCF of 98, 42, 52, 33
• GCF of 33, 17, 27, 99
• GCF of 28, 81, 11, 22
• GCF of 53, 14, 68, 18
• GCF of 43, 72, 74, 49

1. What is the GCF of 15, 35, 60, 81?

Answer: GCF of 15, 35, 60, 81 is 1.

2. How to Find the GCF of 15, 35, 60, 81

Answer: Greatest Common Factor(GCF) of 15, 35, 60, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 35, 60, 81) = 1.