A prime number is divisible only by 1 and itself, which means it has no other divisor except 1 and the number itself. On the contrary, composite numbers have more than two factors. To determine if 31 is a prime number or composite, we need to divide it with numbers from 1 to 31. ...
题目 Determine whether the following numbers is a prime number or a composite number.(1)31A.PrimeB.Composite(2)93A.PrimeB.Composite 答案 (1)A(2)B相关推荐 1Determine whether the following numbers is a prime number or a composite number.(1)31A.PrimeB.Composite(2)93A.PrimeB.Composite 反馈...
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A prime number is any number that can only be evenly divided by itself and one. A composite number is a positive integer that is not a prime number. Here are some examples of prime numbers: 5, 7 and 11. Checking Primes:Suppose we have a candidate prime number. We can check whether ...
Is 1 A Prime Number? Prime and Composite Number Is 1 a Prime Number? How can you tell whether a number is prime or composite? Let’s start by defining what constitutes a number ‘prime.’ A prime number is an integer higher than one with just one and itself as components. Composite...
Is 95 a prime number? A prime number is divisible only by 1 and itself, which means it has no other divisor except 1 and the number itself. On the contrary, composite numbers have more than two factors. To determine if 95 is a prime number or composite, we need to divide it with ...
解析 (a) Since 387 is divisible by 3 , then 387 is a composite number.(b), so the largest prime number less than or equal to is 31 .Since 997 is not divisible by any of the prime numbers 2,3,5,7,11,13,17,19,23,29 and 31 , then 997 is a prime number. ...
• A prime number is any positive number that can only be divided by itself and the number 1. • There are 25 prime numbers up to 100: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. • The opposite of...
• A prime number is any positive number that can only be divided by itself and the number 1. • There are 25 prime numbers up to 100: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. ...
A composite (non-prime) number is a number that has at least one factor other than 1 and the number itself, such as 6. 6 has 4 factors: 1, 2, 3, and 6. Prime numbers only have two factors. How many composite numbers are there up to 20? 相关知识点: 试题来源: 解析 11 A ...