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And 784 is obviously the sum of the cubes of the first 7 integers

7+8+5 = 20
In hexadecimal, multiples of 5 have digits which sum to a multiple of 5
785 hexadecimal = 1792 + 128 + 5 = 1925

786 might be the largest n for which the value of the central binomial coefficient 2nCn is not divisible by an odd prime squared. If there is a larger such number, it would have to be at least 157450.

787 AD The Second Council of Nicaea restores the veneration of icons. This ends the first iconoclastic period in the Byzantine Empire. There will a second but shorter period in the next century. The Second Council of Nicaea is the last Ecumenical Council.

7.88 is amazingly the exact amount I spent at McDonald's this afternoon.

What did you have with this amount?

787 AD A bright meteor appears on the British skies and is considered a bad omen. As the year proceeds things turn for the worse. Vikings raids start in the British Isles.

A typo, 789 it is.

790 year of birth of Pope Leo IV builder of the Leonine wall.

791 (AD) - exactly 1200 years before my last year as an undergrad.

792 AD Offa, king of Mercia and a really fearsome man, arranges coastal defences to fend off Viking attacks. He forms an alliance with Essex, Kent and Sussex, in an attempt to unify England (under his own crown, of course!).

793 is the lowest semiprime happy star number

794

Kyoto becomes the Japanese capital, ending the Nara period, and beginning the Heian period; a Golden Age of Japanese culture begins that will endure under the domination of the Fujiwara, Minamoto, Tachibana and Taira families, until 1185.

damo666 wrote: ↑

Tue Jun 08, 2021 11:31 pm

793 is the lowest semiprime happy star number

Sometimes Dear Damocles... I suspect you make these things up.

In that light...

795... The enigmatic median flux capicitor maximum fluctuation limitation.

dargorygel wrote: ↑

Wed Jun 09, 2021 3:12 am

damo666 wrote: ↑

Tue Jun 08, 2021 11:31 pm

793 is the lowest semiprime happy star number

Sometimes Dear Damocles... I suspect you make these things up.

In that light...

795... The enigmatic median flux capicitor maximum fluctuation limitation.

How dare you Mr dargo

793 is the 12th star number. Only 3 of these are semiprime; 121 = 11*11 253=11*23 and 793 =13*61. 121 and 253 are both 'sad' (not happy). So there. Your 795 is just silly.

"792. Constantine recalled his mother and made her coruler. She took vile advantage of him and, after his divorce and and remarriage arranged by her (795), put herself at the head of a party of the monks in opposing iconoclasm."

796 AD Offa dies and the Saxon kingdoms are again independent of Mercia, there will be two more centuries before England sees one king ruling it all.

797 a future Boeing

798 AD King Alfonso II of Asturias campaigns against the Arab Muslims in Al-Andalus. With Frankish military support, he raids into Andalusia and sacks Lisbon. At the same time Bahlul ibn Marzuq, a Vascon-Muslim military leader, revolts in Zaragoza against the Arab-Muslim government of Al-Andalus. From such regional resistance will the Reconquista emerge.

799 is the hypotenuse of Pythagorean triple 376-705-799 which is 47 times 8-15-17

(if damo can talk about airplanes, I can sorta do math stuff)