(2) The number of natural numbers from 1 to 100 (inclusive) that are divisible by 3 is 33 as 100÷3=33R1. (3) Numbers divisible by both 2 and 3 must be divisible by 6. There are 16 such numbers: 100÷6=16R4. (4) The number of natural numbers divisible by 2 or 3 is...
To test if a number is divisible by three, you add up the digits of the number. If the sum is divisible by three, then the original number is a multiple of three. If the sum is too large, you can repeat the process until you can tell whether it is a multiple of three. This is...
How many numbers between 1 and 1000 are divisible by 3? How many 4-digit multiples of 5 are there? How many 3-digit numbers can be written using the digits 0,2,2,4, and 6? How many perfect numbers are there? What is the value of the digit 3 in the number 3,725.89?
4) Number divisible by 5 Units digit is either zero or five Ex:50, 20, 55, 65, etc 5) Number divisible by 6 The number is divisible by both 2 and 3 EX: 168 Last digit = 8 --- (8 is divisible by 2) Sum of digits = (1 + 6 + 8) = 15 --- (divisible by 3) Hence...
The best approach to solving this problem is to find one number that is divisible by both 3 and 8, and then determine which of the answer choices also goes into that number. When you multiply 3 times 8, you get 24, which means that 24 is one number that is divisible by both 3 and...
We show that certain sums of partition numbers are divisible by multiples of 2 and 3. For example, if $p(n)$ denotes the number of unrestricted partitions of a positive integer n (and $p(0)=1$ , $p(n)=0$ for $n), then for all nonnegative integers m ,...
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.
结果1 题目 In the following pairs of numbers, the pair in which the first number is divisible by the second number is (B).(A)4 and 8(B) 8 and 1(C)10 and 4(D)3 and 6 相关知识点: 试题来源: 解析 答案见上 反馈 收藏 ...
Answer and Explanation: Yes. If two numbers are divisible by 3, then their sum is also divisible by 3. To show why this is, let's assume that two numbers are divisible by 3...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a ...
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...