n=902: c392(3682702466......) = 69606016705406484991000471515023784726122029891 * p345(5290781804......)
# GMP-ECM
n=1656: c430(4072566127......) = 2992954220671053473210428102132664473 * c394(1360717814......)
# GMP-ECM
# Details of the factoring of 10^360+1</a> are available at NP193 report http://user.ecc.u-tokyo.ac.jp/~g440622/np193.html .</p>
n=1548: c430(2377746382......) = 115309033658716156289440262332960681 * c395(2062064269......)
# GMP-ECM
n=720: c193(1000000000......) = 2582785559040998185916696136639544586696154922477921 * p141(3871788722......)
# http://user.ecc.u-tokyo.ac.jp/~g440622/np193.html