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Deux Digit Deduction (Posted on 2015-01-21) Difficulty: 3 of 5
X = 99, Y = 9X and Z = 9Y

Find the respective last two digits of Y and Z.

No Solution Yet Submitted by K Sengupta    
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Solution computer solution -- last 6 digits of each Comment 2 of 2 |
The easy computer way:

x=modpow(9,9,1000000)
OK
y=modpow(9,x,1000000)
OK
z=modpow(9,y,1000000)
OK
print x,y,z
 420489          177289          865289
OK

We have the last six digits of each of x, y and z.

  Posted by Charlie on 2015-01-21 12:52:16
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