Open University pure maths study and research blog
$$k! \equiv 0 (\mod 189)$$ for each $k \geq 9$. The rest is simple summation giving 117.
Thank you for the interest. You might like the Coconuts exercise ( if you haven't already come across it in the past ).
$$k! \equiv 0 (\mod 189)$$ for each $k \geq 9$. The rest is simple summation giving 117.
ReplyDeleteThank you for the interest. You might like the Coconuts exercise ( if you haven't already come across it in the past ).
ReplyDelete