晕乎乎了~T^T求助大侠数学题2、What are the last two digits of the2、What are the last two digits of the number which is formed by multiplying all the odd numbers from 1 to 1000000?

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晕乎乎了~T^T求助大侠数学题2、What are the last two digits of the2、What are the last two digits of the number which is formed by multiplying all the odd numbers from 1 to 1000000?

晕乎乎了~T^T求助大侠数学题2、What are the last two digits of the2、What are the last two digits of the number which is formed by multiplying all the odd numbers from 1 to 1000000?
晕乎乎了~T^T求助大侠数学题2、What are the last two digits of the
2、What are the last two digits of the number which is formed by multiplying all the odd numbers from 1 to 1000000?

晕乎乎了~T^T求助大侠数学题2、What are the last two digits of the2、What are the last two digits of the number which is formed by multiplying all the odd numbers from 1 to 1000000?
帮你翻译一下吧:
求从1到1000000的所有奇数的乘积的最后两位数是多少?
首先告诉你正确答案:25
当i=1 最后两位为=1
当i=3 最后两位为=3
当i=5 最后两位为=15
当i=7 最后两位为=5
当i=9 最后两位为=45
当i=11 最后两位为=95
当i=13 最后两位为=35
当i=15 最后两位为=25
当i=17 最后两位为=25
当i=19 最后两位为=75
当i=21 最后两位为=75
当i=23 最后两位为=25
当i=25 最后两位为=25
当i=27 最后两位为=75
当i=29 最后两位为=75
当i=31 最后两位为=25
当i=33 最后两位为=25
当i=35 最后两位为=75
当i=37 最后两位为=75
当i=39 最后两位为=25
当i=41 最后两位为=25
当i=43 最后两位为=75
当i=45 最后两位为=75
当i=47 最后两位为=25
当i=49 最后两位为=25
写了这么多,你是不是找到规律了?
从15起25,25,75,75 开始重复,
那么用1000000/2=500000 个奇数,
15之前的有7个奇数,所以15之后一共500000-7= 499993个奇数
499993mod4=1(求余)所以 是25