[seqfan] Re: Multiply my digits

[Lars Blomberg]

I have tried all permutations of the digits 22777 plus additional 1's for a total of 5-80 digits.
No luck.
The same for 3899 and 4-60 digits.
>From A085630 ... numbers whose prime divisors are <= 7 ... one can see that already for 38 digits the frequency of such numbers is approximately 10^(-33).
Thus it appears that higher terms in these sequences will be very large, if indeed they exist.

/Lars