Greatest Common Factor of 30, 99, 978

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

• Greatest Common Factor of 30, 99, 978 by common division method
• Greatest Common Factor of 30, 99, 978 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 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 978

List of positive integer factors of 978 that divides 978 without a remainder.

1,2,3,6,163,326,489,978

Greatest Common Factor

We found the factors 30,99,978 . The biggest common factor number is the GCF number.
So the greatest common factor 30,99,978 is 3.

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

• GCF of 68, 67, 724
• GCF of 50, 71, 985
• GCF of 20, 84, 506
• GCF of 94, 36, 684
• GCF of 96, 97, 509

1. What is the GCF of 30, 99, 978?

Answer: GCF of 30, 99, 978 is 3.

2. How to Find the GCF of 30, 99, 978

Answer: Greatest Common Factor(GCF) of 30, 99, 978 = 3

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

Step 2: Then multiply all the prime factors GCF(30, 99, 978) = 3.