Greatest Common Factor of 40, 17, 96, 23, 21

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

• Greatest Common Factor of 40, 17, 96, 23, 21 by common division method
• Greatest Common Factor of 40, 17, 96, 23, 21 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 96

List of positive integer factors of 96 that divides 96 without a remainder.

1,2,3,4,6,8,12,16,24,32,48,96

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 40,17,96,23,21 . The biggest common factor number is the GCF number.
So the greatest common factor 40,17,96,23,21 is 1.

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

• GCF of 48, 90, 97, 23, 73
• GCF of 89, 10, 15, 71, 69
• GCF of 16, 60, 45, 36, 60
• GCF of 25, 12, 68, 33, 28
• GCF of 41, 11, 42, 26, 25

1. What is the GCF of 40, 17, 96, 23, 21?

Answer: GCF of 40, 17, 96, 23, 21 is 1.

2. How to Find the GCF of 40, 17, 96, 23, 21

Answer: Greatest Common Factor(GCF) of 40, 17, 96, 23, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 17, 96, 23, 21) = 1.