[warrior]

Originally Posted by clsuresh

HEre is the next question
Remainder when (63)^165 is divided by 581.

581= 83* 7

now 63 is divisible by 7 also 83 is prime

so 63^164 = 1 mod 83

spo 9*7 /83= 63 /83 = 63 as the rem


okay got it

[avinash786]

Hi Suresh

Can u send me some god quant + DI questions on my mail i.e. avinashsakhardande@gmail.com.

Thanks

Avinash

[writetotanveer]

Originally Posted by avinash786

Hi Suresh

Can u send me some god quant + DI questions on my mail i.e. avinashsakhardande@gmail.com.

Thanks

Avinash

Please do not post ur email id on forum. It is against the rules

Regards
Tanveer

[clsuresh]

Guys here comes our next question
Find the last two digits of 2^995

[hanuman]

Originally Posted by clsuresh

Guys here comes our next question
Find the last two digits of 2^995

I am getting the answer as 68.
euler no of 100 = 40
2^995 mod 100 = 2^35 mod 100
after this i reduced by direct multiplication.

[paramount]

Originally Posted by nagi_nov3

i love remainder questions

63.63^164 mod 581

9.63^164 mod 83 ( we have to mutilply the answer by 7 at the end)

euler for 83 = 82

so 63^164 mod 83 =1

so we left with 9*7 = 63

Originally Posted by hanuman

I am getting the answer as 68.
euler no of 100 = 40
2^995 mod 100 = 2^35 mod 100
after this i reduced by direct multiplication.

yaar ye euler's no kya hota hai .... plz temme more abt it ...

[hanuman]

Originally Posted by paramount

yaar ye euler's no kya hota hai .... plz temme more abt it ...

Read this post buddy http://www.pagalguy.com/forum/564125-post1858.html

[krgaur.m]

Originally Posted by clsuresh

Guys here comes our next question
Find the last two digits of 2^995

Is the correct answer .... 68?

[warrior]

Originally Posted by clsuresh

Guys here comes our next question
Find the last two digits of 2^995

is it 48

we need to find the remainder when it is divided by 100 so we have

2^993/25 or 2^13/25

now 2^13+2^7 is divisible by 25

so 2^13 will leave a remainder of 12 ( 2^7 is 128 and 12= 140-12

also we have cancelled 4 so 12*4= 48

[warrior]

Originally Posted by hanuman

I am getting the answer as 68.
euler no of 100 = 40
2^995 mod 100 = 2^35 mod 100
after this i reduced by direct multiplication.

you can't use euler

2 and 100 are not coprime so euler is not applicable.