Greatest Common Factor of 91, 18, 870

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

• Greatest Common Factor of 91, 18, 870 by common division method
• Greatest Common Factor of 91, 18, 870 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 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 870

List of positive integer factors of 870 that divides 870 without a remainder.

1,2,3,5,6,10,15,29,30,58,87,145,174,290,435,870

Greatest Common Factor

We found the factors 91,18,870 . The biggest common factor number is the GCF number.
So the greatest common factor 91,18,870 is 1.

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

• GCF of 17, 79, 371
• GCF of 17, 56, 547
• GCF of 18, 19, 349
• GCF of 95, 69, 308
• GCF of 27, 40, 489

1. What is the GCF of 91, 18, 870?

Answer: GCF of 91, 18, 870 is 1.

2. How to Find the GCF of 91, 18, 870

Answer: Greatest Common Factor(GCF) of 91, 18, 870 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 18, 870) = 1.