So, the great unclean has every characteristic bar infamy as a multiple of 7, Nurgle's sacred number (except for one which is 43 and 4+3=7). The digits of its wounds score add up to 7. It has an effective psy rating of 7 when it uses its powers.

Ditto for the Lord of Change and the number 9.

I see no such love put into the statblock of the Bloodthirster. For shame, FFG. I hope the updated stats for the Keeper of Secrets do justice.

These numbers could mean a random combination and don't have a special meaning . But at the same time there could be something deeper and the meaning that program developer have hidden . It could be even possible that the developers put the date of their birthday as a access code . It is funny thing but if you are interested access this site https://www.sunsigns.org/famousbirthdays/ for more information about meaning of the numbers .

Thank I could know about Number 7 work with multiply