remainder problm

Find the remainder when 10^10+ 10^100+ 101^000 + . . . +10^10000000000 is divided by 7.

can u please help me to

can u please help me to solve What is the highest power of 12 when divided by 5^36 - 1?

NO. SYS QN1??

FIND REMAINDER OF (4*4!+5*5!+....+20*20!)/64???