Greatest Common Factor of 30, 81, 84, 999

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

• Greatest Common Factor of 30, 81, 84, 999 by common division method
• Greatest Common Factor of 30, 81, 84, 999 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 81

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

1,3,9,27,81

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 999

List of positive integer factors of 999 that divides 999 without a remainder.

1,3,9,27,37,111,333,999

Greatest Common Factor

We found the factors 30,81,84,999 . The biggest common factor number is the GCF number.
So the greatest common factor 30,81,84,999 is 3.

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

• GCF of 51, 99, 12, 725
• GCF of 44, 14, 47, 322
• GCF of 93, 36, 62, 688
• GCF of 87, 33, 12, 327
• GCF of 17, 95, 92, 471

1. What is the GCF of 30, 81, 84, 999?

Answer: GCF of 30, 81, 84, 999 is 3.

2. How to Find the GCF of 30, 81, 84, 999

Answer: Greatest Common Factor(GCF) of 30, 81, 84, 999 = 3

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

Step 2: Then multiply all the prime factors GCF(30, 81, 84, 999) = 3.