Dreamshire

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Archive for May, 2009

Discover the largest product of thirteen consecutive digits in the 1000-digit number.

By Mike Molony ⋅ May 9, 2009 ⋅ 2 comments

Find the only Pythagorean triplet, {a, b, c}, for which a + b + c = 1000.

Calculate the sum of all the primes below two million.

By Mike Molony ⋅ May 18, 2009 ⋅ 5 comments

Find the greatest product of four adjacent numbers in the same direction in a grid.

By Mike Molony ⋅ May 19, 2009 ⋅ 3 comments

Find the value of the first triangle number to have over five hundred divisors

By Mike Molony ⋅ May 18, 2009 ⋅ 6 comments

Find the first ten digits of the sum of one-hundred 50-digit numbers.

By Mike Molony ⋅ May 18, 2009 ⋅ 2 comments

Find the starting number, under one million, that produces the longest Collatz sequence.

By Mike Molony ⋅ May 18, 2009 ⋅ One comment

Sum of the digits in 2^1000.

Count how many letters would be needed to write all the numbers in words from 1 to 1000.

Find the sum of the digits in 100!

If you don't build your dream, someone will hire you to build theirs.