87178291199
domain: N
Appears in sequences
- Largest prime factor of n! - 1.at n=12A002582
- Largest prime <= n!.at n=12A006990
- If n is even, 2(n/2 + 1)! - 1; if n is odd, ((n + 1)/2 + 1)! - 1.at n=24A030494
- a(n) = n! - 1.at n=14A033312
- Nearest prime to n! (but not equal to n!).at n=13A053708
- Smallest prime factor of n!-1 (for n>2), a(2)=1.at n=12A054415
- Largest number x such that sum of divisors of x is n!.at n=11A055489
- Factorial primes: primes of the form n! - 1.at n=5A055490
- Smallest prime of the form k*n! - 1.at n=13A084730
- Factorial primes: primes which are within 1 of a factorial number.at n=9A088054
- Primes in the progression (n!- m)/m where n advances by 1 and m resets to 1 upon each prime occurrence.at n=11A089137
- Largest prime of the form n!/k!-1.at n=11A093622
- a(n) = (2n)! - 1.at n=6A127230
- Floor of value of n-th derivative of Zeta(x) at x=2.at n=13A153577
- a(n) = (-1)^n*(n! - (-1)^n).at n=13A235378