包含7和14,factor 50=5*10factor 51=3*17factor 52=4*13factor 53prime 54=2*3*9,factor 55=5*11,factor 56=7*8,factor 57=3*19,factor 58=2*29,not a factor and not a prime So 58 is the least positive integer that is not a factor of 25!and is not a prime number....
百度试题 结果1 题目What is a common factor of x − 9 and x − 5x + 6? A: x + 3 B: x − 3 C: x − 2 D: x 相关知识点: 试题来源: 解析 B None 反馈 收藏
翻译：如果n和m是正整数，m是62的因子，那么 62=2x31 m is a factor of 62,=> m=1 or 2, or 31 or 62 n and m are positive integers 3n= 36/m m=1 =>n=12 m=2, =>n=6 m=31, =>n= 12/11 ( rej )m=62, =>n=6/31 (rej)the greatest possible number of integers...
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解析 C Do the prime factorization:1* 2* 3* 4* 5* 6* 7* 8* 9=1* 2* 3*(2* 2)*5*(2* 3)*7*(2* 2* 2)*(3* 3)Since there are seven factors of 2, the greatest power of 2 that is a factor is 2^7.反馈 收藏
5 . The improved model of robots will exactly discover weeds and dig them out instead of weedkillers. Robots could be programmed to leave some harmless weeds in the fields to support wildlife living there. A.But scientists have created a farmyard robot B.It is powered by the energy from ...
Data Sufficiency 试题详情 题目: If n is an integer and 2<n<6, what is the value of n? (1) n is a factor of 15. (2) n is a factor of 21. 选项: 答案: B
If n is the product of the integers from1 to 20 inclusive, what is the greatest integer k for which 2k is a factor of n? 选项: A、10 B、12 C、15 D、18 E、20 答案: D 经典答疑 发起提问 提问: 点此查看答疑 这题有没有快速的方法找到20!有多少个2? 评分: 2 浏览: 3404 提问...
A number is a multiple of 8 and a factor of 32. What is the number? A. 8 B. 16 C. 24 D. 32 相关知识点: 试题来源: 解析 A。8 的倍数有 8、16、24 等,32 的因数有 1、2、4、8、16、32,既是 8 的倍数又是 32 的因数的是 8,所以选择 A。