Greatest Common Factor of 61, 30, 85

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

• Greatest Common Factor of 61, 30, 85 by common division method
• Greatest Common Factor of 61, 30, 85 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 61

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

1,61

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 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 61,30,85 . The biggest common factor number is the GCF number.
So the greatest common factor 61,30,85 is 1.

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

• GCF of 46, 79, 96
• GCF of 65, 22, 11
• GCF of 93, 52, 42
• GCF of 94, 97, 46
• GCF of 90, 70, 73

1. What is the GCF of 61, 30, 85?

Answer: GCF of 61, 30, 85 is 1.

2. How to Find the GCF of 61, 30, 85

Answer: Greatest Common Factor(GCF) of 61, 30, 85 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 30, 85) = 1.