Caribou calves weigh about 13 pounds at birth. Is the number 13 a prime or a composite number?
The table shows all the factors of some numbers.
|Factor of||1, 101||1, 7, 19, 133||1, 157||1, 5, 29, 145|
Which of the numbers are prime?
Is 23 a prime or a composite number?
Which of the following is a prime number?
Madison says that every even number is composite because 2 is a factor.
Is she correct? Why?
Is 96 a prime number?
Isabella bought these four raffle tickets, and one of them was the winning ticket.
Is 21 a prime or a composite number?
Find a prime number between 37 and 46.
Look at these numbers.
How many of these numbers are prime?
Which is the largest prime number?
Which is the smallest composite number?
State two prime numbers that are greater than 15 and less than 95.
Determine whether the number 226 is prime, composite, or neither.
Are the numbers 37, 97, and 75 prime numbers?
Michael is learning about prime numbers. He knows that 5 is a prime number, because the only factors of 5 are 1 and 5.
Is 9 a prime number? Why?
All odd numbers greater than 7 can be expressed as the sum of three prime numbers. Which three prime numbers have a sum of 97?
Which of the following is not a prime number?
A teacher asked her class to color all the prime numbers between 1 and 10. Here are some of their answers. Which one is correct?
All prime numbers are odd except .
Find the smallest prime number that is greater than 40.
Benjamin says that 1 is a prime number because it only has 1 factor pair.
Is he correct? Why?