When in South Africa, Do you know which "N" road to take?

South Africa's "N" Roads

N1

The N1 is the route between Cape Town - Bloemfontein - Johannesburg - Musina

N2

The N2 is the route between Cape Town - George - Port Elizabeth - East London - Umtata - Durban - Empangeni - Piet Retief - Ermelo

N3

The N3 is the route between Johannesburg - Harrismith - Pietermaritzburg - Durban

N4

The N4 is the route between Botswana and Mocambique route, passing through Zeerust - Rustenburg - Pretoria - Witbank - Nelspruit - Komatipoort

N17

The N17 is the route between Krugersdorp - Johannesburg - Springs - Bethal - Ermelo - Swaziland