Greatest Common Factor of 15, 80, 612, 390

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

• Greatest Common Factor of 15, 80, 612, 390 by common division method
• Greatest Common Factor of 15, 80, 612, 390 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 612

List of positive integer factors of 612 that divides 612 without a remainder.

1,2,3,4,6,9,12,17,18,34,36,51,68,102,153,204,306,612

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Greatest Common Factor

We found the factors 15,80,612,390 . The biggest common factor number is the GCF number.
So the greatest common factor 15,80,612,390 is 1.

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

• GCF of 94, 94, 600, 531
• GCF of 97, 39, 102, 248
• GCF of 65, 43, 782, 330
• GCF of 92, 69, 377, 611
• GCF of 43, 84, 983, 323

1. What is the GCF of 15, 80, 612, 390?

Answer: GCF of 15, 80, 612, 390 is 1.

2. How to Find the GCF of 15, 80, 612, 390

Answer: Greatest Common Factor(GCF) of 15, 80, 612, 390 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 80, 612, 390) = 1.