Greatest Common Factor of 161, 646, 18

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

• Greatest Common Factor of 161, 646, 18 by common division method
• Greatest Common Factor of 161, 646, 18 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 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

Factors of 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Factors of 18

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

1,2,3,6,9,18

Greatest Common Factor

We found the factors 161,646,18 . The biggest common factor number is the GCF number.
So the greatest common factor 161,646,18 is 1.

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

• GCF of 962, 175, 55
• GCF of 312, 852, 28
• GCF of 481, 332, 80
• GCF of 198, 954, 91
• GCF of 563, 554, 52

1. What is the GCF of 161, 646, 18?

Answer: GCF of 161, 646, 18 is 1.

2. How to Find the GCF of 161, 646, 18

Answer: Greatest Common Factor(GCF) of 161, 646, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(161, 646, 18) = 1.