Greatest Common Factor of 31, 18, 16, 65, 401

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

• Greatest Common Factor of 31, 18, 16, 65, 401 by common division method
• Greatest Common Factor of 31, 18, 16, 65, 401 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 18

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

1,2,3,6,9,18

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 401

List of positive integer factors of 401 that divides 401 without a remainder.

1,401

Greatest Common Factor

We found the factors 31,18,16,65,401 . The biggest common factor number is the GCF number.
So the greatest common factor 31,18,16,65,401 is 1.

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

• GCF of 72, 38, 43, 48, 704
• GCF of 92, 94, 81, 46, 605
• GCF of 71, 30, 34, 54, 342
• GCF of 10, 55, 31, 28, 229
• GCF of 51, 48, 77, 94, 928

1. What is the GCF of 31, 18, 16, 65, 401?

Answer: GCF of 31, 18, 16, 65, 401 is 1.

2. How to Find the GCF of 31, 18, 16, 65, 401

Answer: Greatest Common Factor(GCF) of 31, 18, 16, 65, 401 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 18, 16, 65, 401) = 1.