✔ 最佳答案
數學1題:求8個連續數
1. 有8個連續數13a,7b,47c,157d,59e,11f,79g,19h,求這8個連續數
最小值。 註:a,,b,c,d,e,f,g,h都是正整數。
Sol
p=19h=79g+1=11f+2=59e+3=157d+4=47c+5=7b+6=13a+7
p=79g+1=157d+4
p=79g+1 =>1,80,159,238,317,396,475,….
p=157d+4 =>4,161,318,475,…..
一次至少跳475
475/13=36…7 =>13*36=468
p=13a+7 =>7,475,…
475/7=67…6 =>7*67=469
p=7b+6 =>6,475,…
475/47=10…5 =>47*10=470
p=47c+5 =>5,475,…
475/59=8…63=>59*8=472
p=59e+3 =>3,475,…
475/11=43…2 =>11*43=473
p=11f+2 =>2,475,…
475/19=25
p=19h =>0,475,…
So
468,469,470,471,472,473,474,475