Must one make up prayers missed due to not performing ghusl from masturbation after repentance, and should the make-up be done in order or not?

Intentionally performing prayer without ritual purity is a grave transgression. One who does so is considered to have abandoned prayer, because purity is a condition for theitivity of prayer. If the failure to perform ghusl (ritual bath) after major impurity was due to ignorance of its obligation, then, according to the preponderant opinion, there is no need to make up the past prayers. However, one must repent, become righteous, and increase in good deeds.