百度试题 结果1 题目7 is a prime number. ( ) 相关知识点: 试题来源: 解析 正确 反馈 收藏
1 is not a prime number because it has only one factor, namely 1. Prime numbers need to have exactly two factors. Why is 2 a prime number? 2 is a prime number because its only factors are 1 and itself. Is 51 a prime number? 51 is not a prime number because it has 3 and 17 ...
2 is divided by 12 ?() A.0 B.1 C.2 D.3 E.5 相关知识点: 试题来源: 解析 B [解析] 考生在做该题时可以用尝试法:任取一个大于3的质数去除以12,发现任一大于3的质数平方后被12整除时,余数总为1,例如72=49,49÷12得到商为4,余数为1。反馈 收藏 ...
Is 1 a prime number? No, 1 is not a prime number because it is not greater than 1. Is 2 a prime number? Yes, 2 is a whole positive number that is only divisible by itself and 1. 2 is also the only exception to the rule that a prime number must be odd. ...
<p>To determine which of the given numbers (3123, 219, 573, 467) is a prime number, we need to check each number to see if it has any divisors other than 1 and itself. A prime number is defined as a number greater than 1 that has no positive divisors oth
Brain-buster Mohammed says that 7 is a prime number, and so is 17, so 27 must also be a prime number. Explain why he is wrong. 相关知识点: 试题来源: 解析 Brain-buster 27is not a prime number because it can be divided by 3 and 9. ...
A prime number is an integer, or whole number, that can be divided evenly only by 1 and by itself.
1 从键盘上输入任意一个整数,然后判断该数是否为素数; 如果是素数则输出"This is a prime." 否则输出“This is not a prime.”输入输入任意一个整数n.输出判断n是否为素数,并输出判断结果: 如果n是素数则输出"This is a prime." 否则输出“This is not a prime.”样例输入3样例输出This is a prime.#...
C 46. A 47. B 48. C 49. D 50. D 51. B 52. D 53. A 54. C 55. B 56. A 57. D 58. B 59. C 60. C 61. C 62. A 63. D 64. B 65. B 66. D 67. C 68. B 69. C 70. C 71. C 72. B 73. A 74. B 75. D 76. C 77. A 78. D 79. C 80. A 81....
What is a prime number? A prime number is a number greater than 1 that cannot be divided evenly by any number other than itself or 1. For example: 17 is a prime number because you cannot divide it (without a remainder) by any number except 17 or 1: ...