Greatest Common Factor of 409, 428, 399

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

• Greatest Common Factor of 409, 428, 399 by common division method
• Greatest Common Factor of 409, 428, 399 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 409

List of positive integer factors of 409 that divides 409 without a remainder.

1,409

Factors of 428

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

1,2,4,107,214,428

Factors of 399

List of positive integer factors of 399 that divides 399 without a remainder.

1,3,7,19,21,57,133,399

Greatest Common Factor

We found the factors 409,428,399 . The biggest common factor number is the GCF number.
So the greatest common factor 409,428,399 is 1.

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

• GCF of 975, 560, 755
• GCF of 522, 425, 285
• GCF of 640, 813, 746
• GCF of 483, 272, 373
• GCF of 893, 224, 780

1. What is the GCF of 409, 428, 399?

Answer: GCF of 409, 428, 399 is 1.

2. How to Find the GCF of 409, 428, 399

Answer: Greatest Common Factor(GCF) of 409, 428, 399 = 1

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

Step 2: Then multiply all the prime factors GCF(409, 428, 399) = 1.