Prime Numbers Explained
Interactive Video
•
Mathematics, Science
•
4th Grade - University
•
Practice Problem
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following numbers is a prime number?
8
25
17
20
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a composite number?
A number with more than two factors
A number with only one factor
A number with exactly two factors
A number that is divisible by 1 and itself only
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the number one not considered a prime number?
It is an even number
It is a composite number
It has only one factor
It is divisible by more than two numbers
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you determine if a number like 97 is prime?
Check if it is divisible by any number up to half of itself
Check if it is divisible by any number up to 10
Check if it is divisible by any number up to its square root
Check if it is divisible by any number up to itself
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common characteristic of prime numbers greater than 5?
They all end in 6, 8, or 0
They all end in 5
They all end in 1, 3, 7, or 9
They all end in 0, 2, or 4
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