Greatest Common Factor of 34, 81, 21, 510

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

• Greatest Common Factor of 34, 81, 21, 510 by common division method
• Greatest Common Factor of 34, 81, 21, 510 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 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 510

List of positive integer factors of 510 that divides 510 without a remainder.

1,2,3,5,6,10,15,17,30,34,51,85,102,170,255,510

Greatest Common Factor

We found the factors 34,81,21,510 . The biggest common factor number is the GCF number.
So the greatest common factor 34,81,21,510 is 1.

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

• GCF of 47, 71, 48, 444
• GCF of 37, 45, 15, 917
• GCF of 74, 98, 10, 250
• GCF of 71, 14, 25, 643
• GCF of 10, 46, 35, 345

1. What is the GCF of 34, 81, 21, 510?

Answer: GCF of 34, 81, 21, 510 is 1.

2. How to Find the GCF of 34, 81, 21, 510

Answer: Greatest Common Factor(GCF) of 34, 81, 21, 510 = 1

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

Step 2: Then multiply all the prime factors GCF(34, 81, 21, 510) = 1.