Greatest Common Factor of 40, 43, 21, 618

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

• Greatest Common Factor of 40, 43, 21, 618 by common division method
• Greatest Common Factor of 40, 43, 21, 618 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 618

List of positive integer factors of 618 that divides 618 without a remainder.

1,2,3,6,103,206,309,618

Greatest Common Factor

We found the factors 40,43,21,618 . The biggest common factor number is the GCF number.
So the greatest common factor 40,43,21,618 is 1.

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

• GCF of 11, 47, 18, 605
• GCF of 47, 40, 28, 471
• GCF of 40, 72, 86, 754
• GCF of 16, 88, 93, 993
• GCF of 70, 14, 86, 695

1. What is the GCF of 40, 43, 21, 618?

Answer: GCF of 40, 43, 21, 618 is 1.

2. How to Find the GCF of 40, 43, 21, 618

Answer: Greatest Common Factor(GCF) of 40, 43, 21, 618 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 43, 21, 618) = 1.