Greatest Common Factor of 1, 75, 81, 61

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

• Greatest Common Factor of 1, 75, 81, 61 by common division method
• Greatest Common Factor of 1, 75, 81, 61 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 1

List of positive integer factors of 1 that divides 1 without a remainder.

1

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 81

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

1,3,9,27,81

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Greatest Common Factor

We found the factors 1,75,81,61 . The biggest common factor number is the GCF number.
So the greatest common factor 1,75,81,61 is 1.

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

• GCF of 9, 99, 81, 12
• GCF of 7, 76, 96, 22
• GCF of 5, 58, 80, 12
• GCF of 7, 39, 68, 84
• GCF of 5, 60, 10, 50

1. What is the GCF of 1, 75, 81, 61?

Answer: GCF of 1, 75, 81, 61 is 1.

2. How to Find the GCF of 1, 75, 81, 61

Answer: Greatest Common Factor(GCF) of 1, 75, 81, 61 = 1

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

Step 2: Then multiply all the prime factors GCF(1, 75, 81, 61) = 1.