Greatest Common Factor of 13, 70, 55, 247

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

• Greatest Common Factor of 13, 70, 55, 247 by common division method
• Greatest Common Factor of 13, 70, 55, 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

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 13,70,55,247 . The biggest common factor number is the GCF number.
So the greatest common factor 13,70,55,247 is 1.

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

• GCF of 52, 83, 25, 941
• GCF of 79, 57, 57, 722
• GCF of 21, 49, 93, 197
• GCF of 71, 73, 30, 827
• GCF of 95, 46, 68, 512

1. What is the GCF of 13, 70, 55, 247?

Answer: GCF of 13, 70, 55, 247 is 1.

2. How to Find the GCF of 13, 70, 55, 247

Answer: Greatest Common Factor(GCF) of 13, 70, 55, 247 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 70, 55, 247) = 1.