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Euler problems/121 to 130

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m (EulerProblems/121 to 130 moved to Euler problems/121 to 130)

Revision as of 00:25, 29 March 2007

Contents

1 Problem 121

Investigate the game of chance involving coloured discs.

Solution:

problem_121 = undefined

2 Problem 122

Finding the most efficient exponentiation method.

Solution:

problem_122 = undefined

3 Problem 123

Determining the remainder when (pn − 1)n + (pn + 1)n is divided by pn2.

Solution:

problem_123 = undefined

4 Problem 124

Determining the kth element of the sorted radical function.

Solution:

problem_124 = undefined

5 Problem 125

Finding square sums that are palindromic.

Solution:

problem_125 = undefined

6 Problem 126

Exploring the number of cubes required to cover every visible face on a cuboid.

Solution:

problem_126 = undefined

7 Problem 127

Investigating the number of abc-hits below a given limit.

Solution:

problem_127 = undefined

8 Problem 128

Which tiles in the hexagonal arrangement have prime differences with neighbours?

Solution:

problem_128 = undefined

9 Problem 129

Investigating minimal repunits that divide by n.

Solution:

problem_129 = undefined

10 Problem 130

Finding composite values, n, for which n−1 is divisible by the length of the smallest repunits that divide it.

Solution:

problem_130 = undefined