Prize bond aakra Rootin formula

4 Akara Rout..
503*542=2(73)(16)8
73+61+16+37
Pass hoa ss 61
635*542=3(44)(17)0
44+17+71
Pass hoa ss 17
668*542=3(62)(05)6
62+26+05+50
Pass hoa F 62
629*542=3(40)(91)8
40+04+19+91
Ab vip akra Fs