12. Find the sum of all the numbers from 1 to 100 that are divisible by 5 but not divisible by 2. 相关知识点: 试题来源: 解析 12.解:1~100的整数中,5的奇数倍数从小到大依次为:5,15,25,35,45,55,65,75,85, 95。 它们的总和是:5 × (1+3+5+⋯+10)=500 。
Using divisibility tests, determine which of the following numbers are divisible by 2; by 3; by 4; by 5; by 6; by 8; by 9; by 10; by 11 (say, yes or no): 1/2⋅(-1)^2÷1/2⋅(-1)^2=1/2⋅(-1)^2=1/2.
If a number is divisible by 5, then the units digit must be either 0 or 5. Case 1: If the units digit is 0, then the remaining two places can be done in .^(4)P(2)=12 ways. Case 2: If the units digits is 5, then the remaining two places can be filled
Taking the set of natural numbers as the universal set, write down the complements of the following set: {x : x is a natural number divisible by 3 and 5} View Solution Taking the set of natural number as the universal set, write down the complements of the following sets:{x:x is a...
Miyake, Parametrization of the quadratic fields whose class numbers are divisible by three, J. Number Theory, 80 (2000), 209-217.Kishi Y, Miyake K. Parametrization of the quadratic fields whose class numbers are divisible by three. J Number Theory 2000;80:209-17....
Which of the following numbers are divisible by 2?Which ones are divisible by 5? Which ones are divisible by 4?234 789 7756 8865 3728 8064 相关知识点: 试题来源: 解析 能被2整除:234,7756,3728,8064.能被5整除:8865;能被4整除:7756,3728,8064. 被2整除:末尾是2,4,6,8,0;被4整除:末两位...
How many prime numbers are divisible by( ). A: zero B: one C: three D: ten 相关知识点: 试题来源: 解析 B The only prime number that is divisible by is itself. 有多少质数能被整除( ). . . . . 只有质数能被其自身整除. 故选....
Even numbers are divisible by 2, while odd numbers aren’t. This means that if you divide an even number by 2, you’ll always get a whole number result (e.g. 10/2 = 5). On the other hand, if you divide an odd number by 2, you’ll get a fractional result (e.g. 9/2 =...
To determine whether the number 54010 is divisible by 2, 4, or 8, we will apply the divisibility rules for each of these numbers step by step.Step 1: Check for Divisibility by 2 The rule for divisibility by 2 states that a numb
Check whether the given numbers are divisible by 5 or not:235785 View Solution Check whether the given numbers are divisible by 11 : 4867216 View Solution Check whether the given numbers are divisible by 11 : 12221 View Solution Check whether the given numbers are divisible by 11 : 100001 ...