Greatest Common Factor of 21, 363, 280

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

• Greatest Common Factor of 21, 363, 280 by common division method
• Greatest Common Factor of 21, 363, 280 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 363

List of positive integer factors of 363 that divides 363 without a remainder.

1,3,11,33,121,363

Factors of 280

List of positive integer factors of 280 that divides 280 without a remainder.

1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280

Greatest Common Factor

We found the factors 21,363,280 . The biggest common factor number is the GCF number.
So the greatest common factor 21,363,280 is 1.

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

• GCF of 42, 438, 621
• GCF of 57, 481, 960
• GCF of 22, 574, 532
• GCF of 69, 890, 642
• GCF of 39, 253, 807

1. What is the GCF of 21, 363, 280?

Answer: GCF of 21, 363, 280 is 1.

2. How to Find the GCF of 21, 363, 280

Answer: Greatest Common Factor(GCF) of 21, 363, 280 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 363, 280) = 1.