Greatest Common Factor of 21, 247, 369

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

• Greatest Common Factor of 21, 247, 369 by common division method
• Greatest Common Factor of 21, 247, 369 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 247

List of positive integer factors of 247 that divides 247 without a remainder.

1,13,19,247

Factors of 369

List of positive integer factors of 369 that divides 369 without a remainder.

1,3,9,41,123,369

Greatest Common Factor

We found the factors 21,247,369 . The biggest common factor number is the GCF number.
So the greatest common factor 21,247,369 is 1.

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

• GCF of 44, 321, 114
• GCF of 88, 354, 155
• GCF of 39, 972, 806
• GCF of 37, 955, 340
• GCF of 52, 732, 425

1. What is the GCF of 21, 247, 369?

Answer: GCF of 21, 247, 369 is 1.

2. How to Find the GCF of 21, 247, 369

Answer: Greatest Common Factor(GCF) of 21, 247, 369 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 247, 369) = 1.