Greatest Common Factor of 4, 18, 31, 691

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

• Greatest Common Factor of 4, 18, 31, 691 by common division method
• Greatest Common Factor of 4, 18, 31, 691 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 4

List of positive integer factors of 4 that divides 4 without a remainder.

1,2,4

Factors of 18

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

1,2,3,6,9,18

Factors of 31

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

1,31

Factors of 691

List of positive integer factors of 691 that divides 691 without a remainder.

1,691

Greatest Common Factor

We found the factors 4,18,31,691 . The biggest common factor number is the GCF number.
So the greatest common factor 4,18,31,691 is 1.

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

• GCF of 8, 32, 74, 320
• GCF of 4, 70, 72, 338
• GCF of 1, 30, 60, 533
• GCF of 9, 21, 92, 497
• GCF of 2, 72, 62, 185

1. What is the GCF of 4, 18, 31, 691?

Answer: GCF of 4, 18, 31, 691 is 1.

2. How to Find the GCF of 4, 18, 31, 691

Answer: Greatest Common Factor(GCF) of 4, 18, 31, 691 = 1

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

Step 2: Then multiply all the prime factors GCF(4, 18, 31, 691) = 1.