Is peercoin a fork of primecoin?


Please help me to understand.
Is peercoin a fork of primecoin?
Dose they share the same blockchain like BTC, BCH and BTC gold?
If I have some primecoin do I have some peercoin as well?

Peercoin and Primecoin are separate blockchains, but were invented by the same person. Primecoin was launched later on after Peercoin.

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Peercoin and Primecoin are both forks of older versions of bitcoin. They are forked to such an extent they are completely separate from bitcoin so nothing from bitcoin carries over to ppc or xpm.

Bitcoin cash is a fork but there is so little difference that it is still compatible with the original btc blockchain which is why if you own btc you also own bch.