solve it fastly plz ....i neeed solution
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1000 = 2³ * 5³
Now,
know that n! = n(n-1)(n-2)(n-3)...... (1)
So,
in order to find smallest n, we need a no. such that
n! has at least 5³ as its Factor......
Since, n is a natural no.,
we have (5*3) * (5*2) * (5*1) having 5³ as Factor...
Therefore, Knowing that we needed n!, We put n=15 as the answer....
Hope, the Claim satisfies you - You find it logical.......
Now,
know that n! = n(n-1)(n-2)(n-3)...... (1)
So,
in order to find smallest n, we need a no. such that
n! has at least 5³ as its Factor......
Since, n is a natural no.,
we have (5*3) * (5*2) * (5*1) having 5³ as Factor...
Therefore, Knowing that we needed n!, We put n=15 as the answer....
Hope, the Claim satisfies you - You find it logical.......
Answered by
0
(A) is the answer for your question
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