Greatest Common Factor of 78, 90, 24, 247

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

• Greatest Common Factor of 78, 90, 24, 247 by common division method
• Greatest Common Factor of 78, 90, 24, 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 24

List of positive integer factors of 24 that divides 24 without a remainder.

1,2,3,4,6,8,12,24

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 78,90,24,247 . The biggest common factor number is the GCF number.
So the greatest common factor 78,90,24,247 is 1.

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

• GCF of 93, 28, 47, 657
• GCF of 18, 44, 88, 277
• GCF of 13, 65, 15, 297
• GCF of 94, 56, 13, 683
• GCF of 63, 20, 45, 234

1. What is the GCF of 78, 90, 24, 247?

Answer: GCF of 78, 90, 24, 247 is 1.

2. How to Find the GCF of 78, 90, 24, 247

Answer: Greatest Common Factor(GCF) of 78, 90, 24, 247 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 90, 24, 247) = 1.