0
How do you teach children how to determine if a number is a prime or composite number?
Wiki User
∙ 8y ago
There is no simple way - not only for children but also for expert mathematicians. For small numbers it is relatively simple. First establish a set of primes: these are integers that cannot be divided evenly by any smaller integer (other than 1).
Then, if any given integer (>1) can be divided by any of these numbers, it is composite, and if not it is a prime.
As you get more sophisticated, you will learn that it is only necessary to test for divisibility by numbers up to (and including the square root of the given number (if that is an integer). Other than that, there is no simple rule that children can apply.
In fact, although there are some "formulae" that are likely to give primes, they are not guaranteed. In general, there is no pattern to primes and, therefore, to composites.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Determine if the number 79 is Prime or Composite?
It is a prime.
What are the determine number is a prime or composite of50?
10, 25, 50 are the composite factors of the composite number 50. 2 and 5 are prime.
How can you determine what numbers are prime or composite?
If the number can be multiplied by any number other than 1 it is a composite any other is prime
Determine if the given number is prime if the number is composite write it has a prime factor 295?
295 is composite - 5 x 59.
How do divisibility ryles help you to determine if a number is prime or composite?
If a number is divisible by 3 or more numbers than that number is composite, if not than it is prime.
How can you use arrays to determine if a number prime or composite?
Yes
How do you figure out a composite number?
A number can be factored to determine whether it is prime or composite. A prime number has exactly 2 factors, 1 and the number itself. A composite number has more than two factors.
Hwo do you determine if a number is prime or composite?
Prime numbers have two factors, composite numbers have more than two.
Do you need to know all of the factors of a number in order to determine if it prime or composite?
All natural numbers (counting numbers) greater than one are either prime or composite. If divisible by only one and the number itself, it is prime; if divisible by other natural numbers, then is composite. One is the only natural number that is neither prime nor composite.
How can a factor tree help you determine if a number is prime or composite?
Prime numbers don't have factor trees. So if you can create a tree, your number's composite.
How do you determine if a number is prime or composite?
If the number is divisible by any number and the quotient comes out to a whole number, then that number is composite. The number is prime when divided by a number, the answer is a decimal, then the number is prime. A prime number has exactly two factors, 1 and the number itself. Any number having more factors is a composite number.
How to easily determine prime and composite number?
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
