What is the hundreds digit of (20!−15!)?( )A. 0 B. 1 C. 2 D. 4 E. 5 相关知识点: 试题来源: 解析 A The last three digits of n! for all n⩾15 are 0,because there are at least three 2s and three 5s in its prime factorization. Because 0−0=0,the answer...
百度试题 结果1 题目【题目】What is the hundreds digit of (20!- 15!)?(A.0B.1C.2D.4E.5 相关知识点: 试题来源: 解析 【解析】A
What is the hundreds digit of the integer z? (1) 10z = 93,120 (2) z rounded to the nearest hundred is 9,300. 选项: 答案: A 经典答疑 发起提问 提问: 点此查看答疑 条件2是什么意思 评分: 0 浏览: 724 学长故事 GMAT考了4次,是什么让我成功突围 体验过线上和线下,从GMAT620一...
解析 the hundreds digit of 10n is 6---说明n的十位是6 the ens(这里应该是tens吧?) digit of n+1 is 7---说明n是69 这题只问 tens digit,那就是6,2这个条件没用 分析总结。 这题只问tensdigit那就是62这个条件没用反馈 收藏
百度试题 结果1 题目What is the hundreds digit of 20112011?( )(2011 AMC 10B Problem, Question #23) A.1 B.4 C.5 D.6 E.9 相关知识点: 试题来源: 解析 D 反馈 收藏
20112011=(2011100)20⋅201111 ≡120⋅1111 =1215⋅11 =(−4)5⋅11=−1024⋅1 ≡−24⋅11=−264 ≡111(mod 125). After finding the solution 20112011≡611(mod 1000), we conclude it is the only one by the Chinese Remainder Theorem. Thus, the hundreds digit is (D) 6.反馈...
例:What is the greatest prime factor of 2100 - 296? (A) 2(B) 3(C) 5(D) 7(E) 11例:A positive integer n is said to be “prime-saturated” if the product of all the different positive prime factors of n is less than the square root of n. What is the greatest two-digit pr...
This is true since the place value of any digit contributes to its equal place value (and possibly also to a greater place value) in the product.That is, the hundreds digit of each number being multiplied contributes to the hundreds digit (and possibly to digits of higher place value) i...
The product of the units digit, the tens digit, and the hundreds digit of the positive integer m is 96. What is the units digit of m? (1) m is odd. (2) The hundreds digit of m is 8._选了E 没有找到解答 出国考试答疑器_GMAT_提问
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