Generally, a multiple of 7 is enough within 100, so there are:
7 14 17 2 1 27 28 35 37 42 47 56 57 63 67 70 7 1 72 73 74 75 76 77 78 79 84 87 9 1 97。
Extended data:
Historical events and 7
The July 7th Incident (1), also known as the Lugouqiao Incident and the July 7th Lugouqiao Incident, was a Sino-Japanese military conflict that took place in Beiping, China1July 7th, 937. Japan launched an all-out attack on China.
The July 7th Incident was deliberately created by Japanese imperialism to realize its ambition of annexing China, and it was the beginning of its full-scale invasion of China. The film and television works of the same name were directed by Li Qiankuan and Guiyun Xiao and produced by 1995.
The crashes of American space shuttles Challenger and Columbia dealt a severe blow to American space industry. When two space shuttles crashed, there were seven passengers on board, either astronauts or volunteers preparing to experience life in space.
Only a pair of triplets survived in the world. They are "McCaughey triplets", born in 1997, Iowa, USA.
"The Seven Peaks in the World" refers to every peak on seven continents. Roman Blanco, a Spanish mountaineer, conquered the last of the seven peaks at the age of 70, becoming the oldest climber to climb the "Seven Peaks of the World".
From 5. 1756 to 1763, the "Seven Years' War" broke out in America. Because many countries went to war, former British Prime Minister Winston Churchill thought that this was the real World War I. ..
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