Greatest Common Factor of 3840, 8420

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

• Greatest Common Factor of 3840, 8420 by common division method
• Greatest Common Factor of 3840, 8420 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 x 2 x 5 = 20

Factors of 3840

List of positive integer factors of 3840 that divides 3840 without a remainder.

1,2,3,4,5,6,8,10,12,15,16,20,24,30,32,40,48,60,64,80,96,120,128,160,192,240,256,320,384,480,640,768,960,1280,1920,3840

Factors of 8420

List of positive integer factors of 8420 that divides 8420 without a remainder.

1,2,4,5,10,20,421,842,1684,2105,4210,8420

Greatest Common Factor

We found the factors 3840,8420 . The biggest common factor number is the GCF number.
So the greatest common factor 3840,8420 is 20.

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

• GCF of 8601, 8622
• GCF of 7185, 1073
• GCF of 5403, 8702
• GCF of 8577, 4842
• GCF of 7939, 4670

1. What is the GCF of 3840, 8420?

Answer: GCF of 3840, 8420 is 20.

2. How to Find the GCF of 3840, 8420

Answer: Greatest Common Factor(GCF) of 3840, 8420 = 20

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

Step 2: Then multiply all the prime factors GCF(3840, 8420) = 20.