Is 31 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 31 is a prime number or composite, we need to divide it with ...
Is 119 a prime or composite number? Prime Numbers: A prime number is a number greater than 1 which only has two factors: itself and 1. This means it can only be evenly divided by itself and 1. For example, 13 is a prime number. A composite number is one which has more than two ...
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(1)The factor of 31 are 1, and 31.(2)More than 2 factors相关推荐 1Determine whether the following numbers is a prime number or a composite num...
Suppose we have a candidate prime number. We can check whether or not it is a prime by testing it for divisibility by whole numbers. A prime number should only be divisible by 1 and itself. The only even prime number is 2. All other even numbers are divisible by 2 and therefore not...
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 391 anEven Number?No Is 391 aPerfect Square?No Is 391 a Perfect Cube?No Square of 391152881 Square Rootof 39119.77372 Fun Facts: Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 71 is a prime number and it can be written as ...
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...
【题目】T he smallest prime number is, the sma llest composite number is;is neither a prime number not is a composite number. 相关知识点: 试题来源: 解析 【解析】2:4:1最小的质数是2,最小的合数是4,1既不是质数也不是合数.故答案为:2;4;1. ...
Step 3: Count the total number of prime numbers.There are 10 prime numbers in total. Step 4: Determine the total number of composite numbers.The total number of natural numbers from 1 to 30 is 30. Since 1 is neither prime nor composite, we subtract the 10 prime numbers and 1 from 30...
Is 213 a composite number? Is 251 a composite number? Is 239 a composite number? How to prove (n^5 - n) is divisible by 30? Prove that if n is a positive integer, and the number of its divisors is prime, then it is a power of a prime number. ...