Question 1092574
Call the consecutive numbers {{{ n }}} and {{{ n+1 }}}
{{{ n + n + 1 = 459 }}}
{{{ 2n + 1 = 459 }}}
{{{ 2n = 458 }}}
{{{ n = 229 }}}
and
{{{ n + 1 = 230 }}}
The markers are 229 and 230