4 ms·
Not to mention 1, 2, and 6 :) 7! = 5040 shows up as well in the OEIS sequence. Buuut, 8! = 40320 does not...too many useless 2's in the prime factorization?
by varyherb 5y ago
Not to mention 1, 2, and 6 :)
7! = 5040 shows up as well in the OEIS sequence. Buuut, 8! = 40320 does not...too many useless 2's in the prime factorization?