Greatest Common Factor of 87, 25, 15, 391

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

• Greatest Common Factor of 87, 25, 15, 391 by common division method
• Greatest Common Factor of 87, 25, 15, 391 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 391

List of positive integer factors of 391 that divides 391 without a remainder.

1,17,23,391

Greatest Common Factor

We found the factors 87,25,15,391 . The biggest common factor number is the GCF number.
So the greatest common factor 87,25,15,391 is 1.

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

• GCF of 60, 78, 84, 534
• GCF of 57, 96, 36, 218
• GCF of 67, 95, 17, 845
• GCF of 46, 82, 55, 115
• GCF of 61, 31, 36, 556

1. What is the GCF of 87, 25, 15, 391?

Answer: GCF of 87, 25, 15, 391 is 1.

2. How to Find the GCF of 87, 25, 15, 391

Answer: Greatest Common Factor(GCF) of 87, 25, 15, 391 = 1

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

Step 2: Then multiply all the prime factors GCF(87, 25, 15, 391) = 1.