The greatest common factor of 199 and 259 is 1.
199 is a prime number; no factorization.
Yes. Factor pairs are always repeated across pairs since factor pairs are certain kinds of pairs.
199 is a prime number. It does not have a tree since it only has one prime factor, itself.
The factor pairs of 28 are :28,114,27,4
Sixteen factor pairs.
2 factor pairs
the factor pairs are 1x35 & 5x7
yes
Factors are single numbers. Factor pairs are listed in pairs.