The Counting Thread

[AndyGarbs]

836

I am flat sharing with a work colleague

[BrilloPad]

836 = 22 × 11 × 19, weird number

BrilloPad 312
miffy 292
AndyGarbs 76

hmmmmm

[BrilloPad]

836

I am flat sharing with a work colleague

838

Thank goodness I have a house in London.

[BrilloPad]

839

[BrilloPad]

840

[AndyGarbs]

841

sum of three consecutive primes (277 + 281 + 283), sum of nine consecutive primes (73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109), centered square number, centered heptagonal number, centered octagonal number

[BrilloPad]

841 = 292 = 202 + 212, sum of three consecutive primes (277 + 281 + 283), sum of nine consecutive primes (73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109), centered square number, centered heptagonal number, centered octagonal number

[BrilloPad]

843 = 3 × 281

[BrilloPad]

844 = 22 × 211, nontotient

[BrilloPad]

845 = 5 × 13 X 13