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Oh, dude, you're really making me use my math brain here. Okay, so composite numbers are like those popular kids at school who hang out with more than just the number 1 and themselves. So, if we're looking for numbers that have 8 as a factor, we can pick 16 and 24. Those numbers are like the cool kids who let 8 join their squad without any drama.
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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.
Identify each number as a prime or composite number 13 33 45 19?
13 and 19 are prime. 33 and 45 are composite.
How can you use the common factors of 72 and 108 to identify all the squares that can be used to cover the rectangle?
The squares can have sides equal to each factor that is common to both numbers.
What is the sum ratio of the number of one digit prime numbers and the number of one digit composite numbers?
There are four of each.
Which is a prime number 33 43 63?
33 has the factors ,3, & '11' ; it is composite 43 has no factors ; it is a prime number 63 has the factors 3,7,9,21 ; it is composite.
