Greatest Common Factor of 40, 17, 247

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

• Greatest Common Factor of 40, 17, 247 by common division method
• Greatest Common Factor of 40, 17, 247 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 247

List of positive integer factors of 247 that divides 247 without a remainder.

1,13,19,247

Greatest Common Factor

We found the factors 40,17,247 . The biggest common factor number is the GCF number.
So the greatest common factor 40,17,247 is 1.

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

• GCF of 21, 94, 448
• GCF of 93, 76, 554
• GCF of 35, 58, 141
• GCF of 31, 79, 581
• GCF of 28, 65, 111

1. What is the GCF of 40, 17, 247?

Answer: GCF of 40, 17, 247 is 1.

2. How to Find the GCF of 40, 17, 247

Answer: Greatest Common Factor(GCF) of 40, 17, 247 = 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, 247) = 1.