YOU SAID:
my mother is a mother of 36 children who have 73 grandchildren with 13 different parents.
INTO JAPANESE
私の母は36人の子供を持つ母親で、73人の孫と13人の異なる親がいます。
BACK INTO ENGLISH
My mother is a mother with 36 children, 73 grandchildren and 13 different parents.
INTO JAPANESE
私の母は、36人の子供、73人の孫、13人の異なる親を持つ母親です。
BACK INTO ENGLISH
My mother is a mother with 36 children, 73 grandchildren and 13 different parents.
That didn't even make that much sense in English.