Sujet : Re: 2025: Division by digit removal.
De : dohduhdah (at) *nospam* yahoo.com (sobriquet)
Groupes : sci.mathDate : 02. Jan 2025, 17:13:19
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vl6duv$3dmja$1@dont-email.me>
References : 1
User-Agent : Mozilla Thunderbird
Op 01/01/2025 om 16:23 schreef Alan Mackenzie:
The year is now 2025.
2025 is divisible by 9. To do this, you merely have to remove the digit
0, leaving 225.
225 is also divisible by 9. Again, remove one of the 2 digits, leaving
25.
25 is divisible by 5. Guess what, to do this you remove the 2 digit
leaving 5.
Well, that's as far as it goes.
Happy new year to you all!
https://www.wolframalpha.com/input?i=%28sum+n%3D1+to+9+n%29%5E2https://www.wolframalpha.com/input?i=+sum+n%3D1+to+9+n%5E3
2025: Division by digit removal.
Re: 2025: Division by digit removal.
