a, 325 . 2566 . 102410 = (25)5 . (28)6 . (210)10 = 225 . 248 . 2100 = 225 + 48 + 100 = 2173
b,279 . 2437 . 72912 = (33)9 . (35)7 . (36)12 = 327 . 335 . 372 = 327 + 35 + 72 = 3134
c,1213 . 189 . 2425 = (3 . 22)13 . (32 . 2)9 . (23 . 3)25 = 313 . 226 . 318 . 29 . 275 . 325 = 313 + 18 + 25 . 226 + 9 + 75 = 356 . 2110
d,1089 . 366 . 7217 = (33 . 22)9 . (32 . 22)6 . (23 . 32)17 = 327 . 218 . 312 . 212 . 251 . 334 = 327 + 12 + 34 . 218 + 12 + 51 = 373 . 281