Greatest Common Factor of 15, 68, 1

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

• Greatest Common Factor of 15, 68, 1 by common division method
• Greatest Common Factor of 15, 68, 1 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 1

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

1

Greatest Common Factor

We found the factors 15,68,1 . The biggest common factor number is the GCF number.
So the greatest common factor 15,68,1 is 1.

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

• GCF of 31, 43, 5
• GCF of 60, 68, 9
• GCF of 99, 23, 8
• GCF of 99, 49, 5
• GCF of 74, 31, 9

1. What is the GCF of 15, 68, 1?

Answer: GCF of 15, 68, 1 is 1.

2. How to Find the GCF of 15, 68, 1

Answer: Greatest Common Factor(GCF) of 15, 68, 1 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 68, 1) = 1.