Greatest Common Factor of 40, 25, 63, 18

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

• Greatest Common Factor of 40, 25, 63, 18 by common division method
• Greatest Common Factor of 40, 25, 63, 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 40

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

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

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

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 40,25,63,18 . The biggest common factor number is the GCF number.
So the greatest common factor 40,25,63,18 is 1.

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

• GCF of 15, 37, 92, 86
• GCF of 58, 44, 76, 53
• GCF of 44, 54, 98, 69
• GCF of 11, 48, 10, 60
• GCF of 34, 13, 70, 45

1. What is the GCF of 40, 25, 63, 18?

Answer: GCF of 40, 25, 63, 18 is 1.

2. How to Find the GCF of 40, 25, 63, 18

Answer: Greatest Common Factor(GCF) of 40, 25, 63, 18 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 25, 63, 18) = 1.