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1) Find the remainder of 5^400 when divided by 19

 

2) What is the TENS digit of 7^2018 (the ones digit is 7)

 

3) Solve the congruence: 3x = 5(mod 4)

 

 

TYSM :)

 Mar 14, 2021
 #1
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https://web2.0calc.com/questions/exponents_35

 Mar 14, 2021

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