Greatest Common Factor of 390, 684, 30

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

• Greatest Common Factor of 390, 684, 30 by common division method
• Greatest Common Factor of 390, 684, 30 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 x 3 = 6

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Factors of 684

List of positive integer factors of 684 that divides 684 without a remainder.

1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684

Factors of 30

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

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

Greatest Common Factor

We found the factors 390,684,30 . The biggest common factor number is the GCF number.
So the greatest common factor 390,684,30 is 6.

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

• GCF of 496, 864, 95
• GCF of 274, 403, 94
• GCF of 136, 204, 39
• GCF of 354, 600, 44
• GCF of 992, 240, 61

1. What is the GCF of 390, 684, 30?

Answer: GCF of 390, 684, 30 is 6.

2. How to Find the GCF of 390, 684, 30

Answer: Greatest Common Factor(GCF) of 390, 684, 30 = 6

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

Step 2: Then multiply all the prime factors GCF(390, 684, 30) = 6.