Greatest Common Factor of 20, 51, 343, 989

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

• Greatest Common Factor of 20, 51, 343, 989 by common division method
• Greatest Common Factor of 20, 51, 343, 989 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 343

List of positive integer factors of 343 that divides 343 without a remainder.

1,7,49,343

Factors of 989

List of positive integer factors of 989 that divides 989 without a remainder.

1,23,43,989

Greatest Common Factor

We found the factors 20,51,343,989 . The biggest common factor number is the GCF number.
So the greatest common factor 20,51,343,989 is 1.

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

• GCF of 24, 43, 840, 990
• GCF of 29, 26, 581, 719
• GCF of 18, 54, 832, 729
• GCF of 91, 94, 967, 441
• GCF of 62, 50, 141, 588

1. What is the GCF of 20, 51, 343, 989?

Answer: GCF of 20, 51, 343, 989 is 1.

2. How to Find the GCF of 20, 51, 343, 989

Answer: Greatest Common Factor(GCF) of 20, 51, 343, 989 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 51, 343, 989) = 1.