TCS Company Numerical Ability Permutation and Combination

1!+2!+.....=50!=?

Read Solution (Total 3)

3.10350532 × 10^64

dead sure this is the right answer....
13 years agoHelpfull: Yes(55) No(21)

shruti the formula that you have given is for sum of n natural numbers,
not for the sum of their factors
13 years agoHelpfull: Yes(47) No(18)
its a basic formula..
n(n+1)/2
50*51/2
=1275
13 years agoHelpfull: Yes(4) No(178)

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