### শেষ ৩টি অঙ্ক কত?

Posted:

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

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Posted: **Wed Mar 06, 2019 12:18 pm**

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

Posted: **Wed Mar 06, 2019 4:45 pm**

$\fbox {000}$math_hunter wrote: ↑Wed Mar 06, 2019 12:18 pm1x2x3x4x5x.....x2018 এর শেষ তিনটি অঙ্ক কত? (একক, দশক, শতক)

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

Posted: **Wed Mar 06, 2019 6:41 pm**

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

Posted: **Wed Mar 06, 2019 9:12 pm**

The product=$1×2×3×...×1000×...×2018$

So,it must be divided by $1000$.

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

Posted: **Wed Mar 06, 2019 9:36 pm**

Hmm...Thankssamiul_samin wrote: ↑Wed Mar 06, 2019 9:12 pmThe product=$1×2×3×...×1000×...×2018$

So,it must be divided by $1000$.

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

Posted: **Wed Mar 06, 2019 11:52 pm**

No need to mension.