Greatest Common Factor of 90, 48, 31, 78

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

• Greatest Common Factor of 90, 48, 31, 78 by common division method
• Greatest Common Factor of 90, 48, 31, 78 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 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 48

List of positive integer factors of 48 that divides 48 without a remainder.

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

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 78

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

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

Greatest Common Factor

We found the factors 90,48,31,78 . The biggest common factor number is the GCF number.
So the greatest common factor 90,48,31,78 is 1.

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

• GCF of 85, 38, 59, 47
• GCF of 48, 87, 71, 78
• GCF of 70, 35, 20, 18
• GCF of 97, 99, 63, 83
• GCF of 12, 92, 33, 93

1. What is the GCF of 90, 48, 31, 78?

Answer: GCF of 90, 48, 31, 78 is 1.

2. How to Find the GCF of 90, 48, 31, 78

Answer: Greatest Common Factor(GCF) of 90, 48, 31, 78 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 48, 31, 78) = 1.