Euler problems/141 to 146

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Problem 141

Investigating progressive numbers, n, which are also square.

Solution:

problem_141 = undefined

Problem 142

Perfect Square Collection

Solution:

problem_142 = undefined

Problem 143

Investigating the Torricelli point of a triangle

Solution:

problem_143 = undefined

Problem 144

Investigating multiple reflections of a laser beam.

Solution:

problem_144 = undefined

Problem 145

How many reversible numbers are there below one-billion?

Solution:

problem_145 = undefined

Problem 146

Investigating a Prime Pattern

Solution:

problem_146 = undefined