Question

What is the remainder obtained when 20 factorial is divided with 361.​

Answer 1

``Answer:

323

Step-by-step explanation:

361=19*19

21!=21*20*19*18*...

rem= 19* (21*20*18! mod 19)

18!/19= -1

20/19=1 and 21/19=2

net remainder= 19*2*1*(-1)=-38= 361-38=323

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