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...
First,except for the number 2, all prime numbers are odd, since an even number is divisible by 2, which makes it composite. So, the distance between any two prime numbers in a row (called successive prime numbers) is at least 2. Are all even numbers prime yes or no? A prime number...
There can be only 1 even number that is prime – the number 2. Every other even number is divisible by 2, as well as 1 and itself, and is therefore not prime. Only 1 prime number ends in 5, and that is the number 5. The prime numbers between zero and 100 are: 1 2 3 5 7 ...
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....
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...
Even numbers are the numbers that are exactly divisible by 2. Therefore, 4, 12, and 32 are even numbers, whereas, odd numbers are the numbers that are not divisible by 2. Therefore, 1, 3, 7, 21, and 29 are odd numbers. Example 3:William has a collection of number cards with the...
(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 ...
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. ...