[计量] MANHATTAN PREP一数学问题 ilovealv PTT批踢踢实业坊

[计量] MANHATTAN PREP一数学问题

楼主: ilovealv ( ) 2014-05-13 23:06:06

If the units digit of an integer is 7,
then which one-digit integers is it definitely NOT divisible by?
Ans: 2,4,5,6 and 8.
但我认为是1,3,7 and 9
请问板友可以帮我解惑吗?? 谢谢!

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