
Re: Relation between sum and product of primes
Posted:
Jan 9, 2015 5:26 AM


Le vendredi 9 janvier 2015 00:52:38 UTC+1, ventocil...@gmail.com a écrit : > El jueves, 8 de enero de 2015, 8:44:46 (UTC4:30), lut...@gmail.com escribió: > > For instance,3+5+7=3x5 > > > > Are there other examples of such relation? > > > > Th2x3x5x7 anks > > There are infinitely many. > Each time that a sum of primes is composite its factorization is a prodruct of primes. Example: 3+5+7+11 = 2x13
Does that imply that the product of 2 very big primes is also a sum of consecutive primes?
Thanks
> > This problem sugest to create a nice puzzle: > "To find a sum of n consecutive primes that are a product of m consecutive primes." > As example: 13+17+19+23+29+31+37+41 = 2x3x5x7 = 210

