l GCF of 9 and 7

Enter GCF or LCM numbers:

Number 1Number 2(Optional) Enter Number 3
            

Answer
1

↓Steps Explained:↓



Determine GCF(9,7)

GCF = Largest factor that divides numbers

Determine the factors for 9

1,3

Determine the factors for 7

1,7

List the common factors

1

GCF(9,7) = 1

Evaluate GCF

Since GCF = 1, they are relatively prime (co-prime)

Since GCF = 1 with difference of two, they are twin prime



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