Greatest Common Factor of 399, 8424, 821

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

• Greatest Common Factor of 399, 8424, 821 by common division method
• Greatest Common Factor of 399, 8424, 821 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 399

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

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

Factors of 8424

List of positive integer factors of 8424 that divides 8424 without a remainder.

1,2,3,4,6,8,9,12,13,18,24,26,27,36,39,52,54,72,78,81,104,108,117,156,162,216,234,312,324,351,468,648,702,936,1053,1404,2106,2808,4212,8424

Factors of 821

List of positive integer factors of 821 that divides 821 without a remainder.

1,821

Greatest Common Factor

We found the factors 399,8424,821 . The biggest common factor number is the GCF number.
So the greatest common factor 399,8424,821 is 1.

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

• GCF of 416, 5145, 112
• GCF of 644, 7758, 914
• GCF of 981, 1524, 173
• GCF of 739, 2318, 436
• GCF of 303, 1577, 490

1. What is the GCF of 399, 8424, 821?

Answer: GCF of 399, 8424, 821 is 1.

2. How to Find the GCF of 399, 8424, 821

Answer: Greatest Common Factor(GCF) of 399, 8424, 821 = 1

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

Step 2: Then multiply all the prime factors GCF(399, 8424, 821) = 1.