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How can you use an array of counters to identify whether a number of counters is prime or composite?
If you can arrange the counters in the shape of a rectangle with at least two in each row and each column then the number is composite. The numbers of row and the numbers of columns are factors of the given number. If the only rectangle you can make is the "degenerate" one, with only one row or only one column, then the number is prime.
What else can I help you with?
How do you prove that a number is a composite?
To prove whether a number is composite, factor it. A number having any factor besides 1 and itself is composite.
Identify each number as a prime or composite number 13 33 45 19?
13 and 19 are prime. 33 and 45 are composite.
What is a diagram used to identify the prime factors of a composite number?
factor tree
How can you determine whether a counting number is a composite numbers?
If it has more than two factors.
Is 153 a prime or composite number?
It is a composite number.
Identify number as prime composite or neither 77?
Identify each number as prime, composite or neither: 1
How can you identify any number whether prime or composite?
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.
How do you prove that a number is a composite?
To prove whether a number is composite, factor it. A number having any factor besides 1 and itself is composite.
How do you identify a number if its prime or composite number?
To identify whether a number is prime or composite, look at its factors. A prime number has exactly two factors: one and itself. A composite number has more factors and can be written as the product of prime numbers. For example: Factors of 17: 1 and 17 so 17 is prime. Factors of 102: 1, 2, 3, 6, 17, 34, 51 and 102 so 102 is composite. It can be expressed as the product of prime numbers by prime factoring: 2 x 3 x 17
Is 20 whether a prime number or compsite number?
20 is a composite number
Can a number not be prime or composite?
Now.... That depends on whether it is a number orr not!? :)
Identify each number as a prime or composite number 13 33 45 19?
13 and 19 are prime. 33 and 45 are composite.
How do you identify if a number is prim or composite?
A prime number has only two factors which are itself and one whereas a composite number has more than two factors
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.
What is a diagram used to identify the prime factors of a composite number?
factor tree
How many counters are needed if you want to double the number of counters you currently have?
To double the number of counters you currently have, you would need the same number of counters that you currently have.
Can you tell a prime or composite number by seeing if its odd or even?
You cannot. If a number is even - other than 2 - then it is a composite number. However, if it is odd, it is not easily possible to tell whether it is prime or composite.
