Greatest Common Factor of 17, 71, 87, 780

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

• Greatest Common Factor of 17, 71, 87, 780 by common division method
• Greatest Common Factor of 17, 71, 87, 780 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 87

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

1,3,29,87

Factors of 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Greatest Common Factor

We found the factors 17,71,87,780 . The biggest common factor number is the GCF number.
So the greatest common factor 17,71,87,780 is 1.

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

• GCF of 97, 24, 62, 993
• GCF of 53, 31, 18, 151
• GCF of 96, 66, 42, 343
• GCF of 33, 50, 55, 156
• GCF of 54, 86, 95, 500

1. What is the GCF of 17, 71, 87, 780?

Answer: GCF of 17, 71, 87, 780 is 1.

2. How to Find the GCF of 17, 71, 87, 780

Answer: Greatest Common Factor(GCF) of 17, 71, 87, 780 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 71, 87, 780) = 1.