Greatest Common Factor of 18, 61, 65, 54, 785

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

• Greatest Common Factor of 18, 61, 65, 54, 785 by common division method
• Greatest Common Factor of 18, 61, 65, 54, 785 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 61

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

1,61

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Factors of 785

List of positive integer factors of 785 that divides 785 without a remainder.

1,5,157,785

Greatest Common Factor

We found the factors 18,61,65,54,785 . The biggest common factor number is the GCF number.
So the greatest common factor 18,61,65,54,785 is 1.

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

• GCF of 91, 90, 11, 92, 997
• GCF of 19, 73, 12, 36, 862
• GCF of 63, 38, 69, 61, 591
• GCF of 90, 55, 27, 52, 209
• GCF of 31, 62, 15, 84, 860

1. What is the GCF of 18, 61, 65, 54, 785?

Answer: GCF of 18, 61, 65, 54, 785 is 1.

2. How to Find the GCF of 18, 61, 65, 54, 785

Answer: Greatest Common Factor(GCF) of 18, 61, 65, 54, 785 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 61, 65, 54, 785) = 1.