Greatest Common Factor of 15, 85, 12, 860

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

• Greatest Common Factor of 15, 85, 12, 860 by common division method
• Greatest Common Factor of 15, 85, 12, 860 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 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 860

List of positive integer factors of 860 that divides 860 without a remainder.

1,2,4,5,10,20,43,86,172,215,430,860

Greatest Common Factor

We found the factors 15,85,12,860 . The biggest common factor number is the GCF number.
So the greatest common factor 15,85,12,860 is 1.

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

• GCF of 72, 75, 25, 142
• GCF of 37, 11, 52, 341
• GCF of 87, 69, 48, 863
• GCF of 66, 75, 99, 973
• GCF of 57, 98, 64, 408

1. What is the GCF of 15, 85, 12, 860?

Answer: GCF of 15, 85, 12, 860 is 1.

2. How to Find the GCF of 15, 85, 12, 860

Answer: Greatest Common Factor(GCF) of 15, 85, 12, 860 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 85, 12, 860) = 1.