Greatest Common Factor of 18, 49, 51, 397

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

• Greatest Common Factor of 18, 49, 51, 397 by common division method
• Greatest Common Factor of 18, 49, 51, 397 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 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 51

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

1,3,17,51

Factors of 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Greatest Common Factor

We found the factors 18,49,51,397 . The biggest common factor number is the GCF number.
So the greatest common factor 18,49,51,397 is 1.

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

• GCF of 59, 61, 18, 731
• GCF of 69, 90, 57, 415
• GCF of 29, 43, 23, 877
• GCF of 77, 40, 95, 210
• GCF of 50, 28, 72, 194

1. What is the GCF of 18, 49, 51, 397?

Answer: GCF of 18, 49, 51, 397 is 1.

2. How to Find the GCF of 18, 49, 51, 397

Answer: Greatest Common Factor(GCF) of 18, 49, 51, 397 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 49, 51, 397) = 1.