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....
What are odd and even numbers? 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 ...
No, 8 is not a prime number. The number 8 is divisible by 1, 2, 4, 8. For a number to be classified as a prime number, it should have exactly two factors. Since 8 has more than two factors, i.e. 1, 2, 4, 8, it is not a prime number. Is zero an even number? For ma...
Prime numbers are any numbers that cannot be evenly divided by any integer other than 1 and itself. Or in other words, the only numbers that you can multiply to get a prime number are 1 and the prime number. Numbers that are not prime, or those with additional factors other than 1 and...
How many 2-digit numbers are divisible by 2 and 3? How many odd prime factors of 56 are there? What is a two-digit composite number divisible by both 5 and 9? How many total prime numbers have been discovered? Which is the largest prime number that will divide the numbers 45 and 60...
解析 (1) 101 is a prime number. (2) 123 is not a prime number as it is divisible by 3. (3) 127 is a prime number. (4) 133 is not a prime number as it is divisible by 7. (1) N/A. (2) N/A. (3) N/A. (4) N/A....
2 is the smallest even number. It is also the only even prime number. Are all the Even Numbers Natural Numbers? Yes, all the even numbers that are completely divisible by 2 are alsonatural numbers. For example, 14, 18, 22, 24, etc. ...
The odd natural numbers are the numbers that are odd and belong to the set N. So the set of odd natural numbers is {1,3,5,7,...}. Even Natural Numbers The even natural numbers are the numbers that are even, which means the natural numbers that are completely divisible by 2, and ...
(5)If two numbers are co-primes, at least one of them must be prime.(6)All numbers which are divisible by 4 must also be divisible by 8.(7)All numbers which are divisible by 8 must also be divisible by 4.(8)If a number exactly divides two numbers separately, it must exactly ...
To find how many numbers from 1 to 1000 are divisible by 2, 3, 4, and 5, we can follow these steps:Step 1: Find the LCM of the numbers 2, 3, 4, and 5 To determine how many numbers are divisible by all four numbers, we first nee