Greatest Common Factor of 18, 75, 40, 685

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

• Greatest Common Factor of 18, 75, 40, 685 by common division method
• Greatest Common Factor of 18, 75, 40, 685 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 75

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

1,3,5,15,25,75

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 685

List of positive integer factors of 685 that divides 685 without a remainder.

1,5,137,685

Greatest Common Factor

We found the factors 18,75,40,685 . The biggest common factor number is the GCF number.
So the greatest common factor 18,75,40,685 is 1.

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

• GCF of 42, 29, 99, 565
• GCF of 94, 45, 93, 576
• GCF of 55, 47, 13, 776
• GCF of 76, 19, 36, 831
• GCF of 71, 76, 60, 232

1. What is the GCF of 18, 75, 40, 685?

Answer: GCF of 18, 75, 40, 685 is 1.

2. How to Find the GCF of 18, 75, 40, 685

Answer: Greatest Common Factor(GCF) of 18, 75, 40, 685 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 75, 40, 685) = 1.