Greatest Common Factor of 21, 338, 240

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

• Greatest Common Factor of 21, 338, 240 by common division method
• Greatest Common Factor of 21, 338, 240 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 338

List of positive integer factors of 338 that divides 338 without a remainder.

1,2,13,26,169,338

Factors of 240

List of positive integer factors of 240 that divides 240 without a remainder.

1,2,3,4,5,6,8,10,12,15,16,20,24,30,40,48,60,80,120,240

Greatest Common Factor

We found the factors 21,338,240 . The biggest common factor number is the GCF number.
So the greatest common factor 21,338,240 is 1.

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

• GCF of 82, 545, 390
• GCF of 19, 301, 776
• GCF of 71, 854, 855
• GCF of 41, 290, 804
• GCF of 70, 494, 591

1. What is the GCF of 21, 338, 240?

Answer: GCF of 21, 338, 240 is 1.

2. How to Find the GCF of 21, 338, 240

Answer: Greatest Common Factor(GCF) of 21, 338, 240 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 338, 240) = 1.