Greatest Common Factor of 840, 855, 493, 128

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

• Greatest Common Factor of 840, 855, 493, 128 by common division method
• Greatest Common Factor of 840, 855, 493, 128 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 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Factors of 855

List of positive integer factors of 855 that divides 855 without a remainder.

1,3,5,9,15,19,45,57,95,171,285,855

Factors of 493

List of positive integer factors of 493 that divides 493 without a remainder.

1,17,29,493

Factors of 128

List of positive integer factors of 128 that divides 128 without a remainder.

1,2,4,8,16,32,64,128

Greatest Common Factor

We found the factors 840,855,493,128 . The biggest common factor number is the GCF number.
So the greatest common factor 840,855,493,128 is 1.

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

• GCF of 884, 195, 254, 547
• GCF of 725, 810, 115, 827
• GCF of 675, 337, 206, 826
• GCF of 205, 277, 482, 954
• GCF of 954, 904, 721, 125

1. What is the GCF of 840, 855, 493, 128?

Answer: GCF of 840, 855, 493, 128 is 1.

2. How to Find the GCF of 840, 855, 493, 128

Answer: Greatest Common Factor(GCF) of 840, 855, 493, 128 = 1

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

Step 2: Then multiply all the prime factors GCF(840, 855, 493, 128) = 1.