29 Apr
2007
29 Apr
'07
2:58 p.m.
On Sunday 29 April 2007 21:42, Daniel Asimov wrote:
I don't know the factoring algorithm used here, but if you try to count seconds along with the clock, it's clear that harder numbers to factor correspond to, um, longer seconds.
Trial division, with a prebuilt table of primes. (Just look at the page's source; the factoring is done in JavaScript.) -- g