Dreamshire

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Solutions 101 – 150

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This category contains 27 posts

By Mike Molony ⋅ July 22, 2014 ⋅ Post a comment

Find how many Pythagorean triangles allow tiling with a perimeter < 100,000,000.

Determining the value of infinite polynomial series for which the coefficients are Fibonacci numbers.

By Mike Molony ⋅ May 1, 2012 ⋅ 3 comments

Investigating isosceles triangle for which the height and base length differ by one.

By Mike Molony ⋅ April 26, 2012 ⋅ Post a comment

Finding the maximum remainder when (a − 1)ⁿ + (a + 1)ⁿ is divided by a².

By Mike Molony ⋅ June 15, 2009 ⋅ 2 comments

Investigating minimal repunits that divide by n.

Finding square sums that are palindromic.

By Mike Molony ⋅ June 15, 2009 ⋅ Post a comment

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

By Mike Molony ⋅ June 15, 2009 ⋅ Post a comment

Determining the first forty prime factors of a very large repunit.

By Mike Molony ⋅ June 16, 2009 ⋅ 4 comments

Investigating which primes will never divide a repunit containing 10**n digits.

By Mike Molony ⋅ June 12, 2009 ⋅ 2 comments

Count how many numbers below a googol (10**100) are not “bouncy”

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