Greatest Common Factor of 390, 321, 428

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

• Greatest Common Factor of 390, 321, 428 by common division method
• Greatest Common Factor of 390, 321, 428 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 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 321

List of positive integer factors of 321 that divides 321 without a remainder.

1,3,107,321

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors 390,321,428 . The biggest common factor number is the GCF number.
So the greatest common factor 390,321,428 is 1.

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

• GCF of 938, 372, 988
• GCF of 126, 895, 242
• GCF of 624, 830, 770
• GCF of 899, 804, 514
• GCF of 324, 219, 612

1. What is the GCF of 390, 321, 428?

Answer: GCF of 390, 321, 428 is 1.

2. How to Find the GCF of 390, 321, 428

Answer: Greatest Common Factor(GCF) of 390, 321, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(390, 321, 428) = 1.