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শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 06, 2019 12:18 pm
by math_hunter
1x2x3x4x5x.....x2018 এর শেষ তিনটি অঙ্ক কত? (একক, দশক, শতক) :?: :?: :?:

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 06, 2019 4:45 pm
by samiul_samin
math_hunter wrote:
Wed Mar 06, 2019 12:18 pm
1x2x3x4x5x.....x2018 এর শেষ তিনটি অঙ্ক কত? (একক, দশক, শতক) :?: :?: :?:
$\fbox {000}$

The product is divisible by $1000$.So,the last three digits of the product must be $000$.

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 06, 2019 6:41 pm
by math_hunter
How can I say that the product is divisible by 1000?

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 06, 2019 9:12 pm
by samiul_samin
math_hunter wrote:
Wed Mar 06, 2019 6:41 pm
How can I say that the product is divisible by 1000?
The product=$1×2×3×...×1000×...×2018$
So,it must be divided by $1000$.

As example $1×2×3×4×5$ is divided by $1,2,3,4,5$.

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 06, 2019 9:36 pm
by math_hunter
samiul_samin wrote:
Wed Mar 06, 2019 9:12 pm
math_hunter wrote:
Wed Mar 06, 2019 6:41 pm
How can I say that the product is divisible by 1000?
The product=$1×2×3×...×1000×...×2018$
So,it must be divided by $1000$.

As example $1×2×3×4×5$ is divided by $1,2,3,4,5$.
Hmm...Thanks

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 06, 2019 11:52 pm
by samiul_samin
No need to mension.

Re: শেষ ৩টি অঙ্ক কত?

Posted: Thu Dec 03, 2020 8:58 pm
by Samya
Here 1000 is a factor of the product then it is obviously dived the product😀😀

Re: শেষ ৩টি অঙ্ক কত?

Posted: Tue Feb 16, 2021 9:44 am
by Raonak_Tasnim
1*2*3*4*5*6*7*......*1000*.....*2018
Ans will be 000

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Feb 24, 2021 1:25 pm
by HOSSAIN MANSUR
000 is the answer.yo

Re: শেষ ৩টি অঙ্ক কত?

Posted: Wed Mar 10, 2021 6:02 pm
by 217066
Maane :roll: