Find the GCF of 17,19 using prime factorizations

Sagot :

Both 17 and 19 are prime numbers so their GCF is 1.
These numbers are prime, not composite, so they can only be divided by one and themselves. So the greatest common factor is 1.

    17          
  /     \
1      17 
   
    19        
  /     \
1      19