Questions Answers on Factorial
Factorial problems with tricks, formulas, and solved aptitude questions for competitive exams like MBA entrance, banking, board exams & civil services.
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How many number of trailing zeros are there in 30! ?
As we know 30! = 30 x 29 x 28 ………………………..x 3 x 2 x 1 Lets divide the answer into three parts First lets mutiply 1 to 10 1 x 2x 3 x 4 x 5 x 6 x…
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How many number of trailing zeros are there in 10! ?
We know 10! = 10x9x8………x3x2x1 So we get one trailing zero from 10 itself Smilarly we get another trailing zero from 5×2 = 10 Thus answer is ‘ 2 ‘
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How many number of trailing zeros are there in 100! ?
As we know 100! = 100 x 99 x 98 ………………………..x 3 x 2 x 1 First lets mutiply 1 to 10 1 x 2x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10…
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