শেষ ৩টি অঙ্ক কত?

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math_hunter
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শেষ ৩টি অঙ্ক কত?

Unread post by math_hunter » Wed Mar 06, 2019 12:18 pm

1x2x3x4x5x.....x2018 এর শেষ তিনটি অঙ্ক কত? (একক, দশক, শতক) :?: :?: :?:

samiul_samin
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by samiul_samin » Wed Mar 06, 2019 4:45 pm

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 $000$.

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math_hunter
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by math_hunter » Wed Mar 06, 2019 6:41 pm

How can I say that the product is divisible by 1000?

samiul_samin
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by samiul_samin » 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 $1,2,3,4,5$.

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math_hunter
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by math_hunter » Wed Mar 06, 2019 9:36 pm

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

samiul_samin
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by samiul_samin » Wed Mar 06, 2019 11:52 pm

No need to mension.

Samya
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by Samya » Thu Dec 03, 2020 8:58 pm

Here 1000 is a factor of the product then it is obviously dived the product😀😀

Raonak_Tasnim
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by Raonak_Tasnim » Tue Feb 16, 2021 9:44 am

1*2*3*4*5*6*7*......*1000*.....*2018
Ans will be 000

HOSSAIN MANSUR
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by HOSSAIN MANSUR » Wed Feb 24, 2021 1:25 pm

000 is the answer.yo

217066
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Re: শেষ ৩টি অঙ্ক কত?

Unread post by 217066 » Wed Mar 10, 2021 6:02 pm

Maane :roll:

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