Prime & Composite

Drag each number to either prime or composite.

Drag each number to either prime or composite.

Make a factor chart for the number 12. Then select all the factors of 12.

Use question 7 to determine if 24 is prime or composite.

The number 24 is a ______________ number.

Spelling matters.

What is the smallest composite number?

What is the smallest prime number that is odd?

What is the only even prime number?

Select all the composite numbers from the list below. Use your divisibility rules.

7, 21, 37, 44, 51, 63, 81, 82

How many factors does the number 8 have?

Select all the numbers below that 24 is divisible by.

Use the divisibility rules sheet.

Select all the numbers below that 30 is divisible by.

Use the divisibility rules sheet.

Select all the numbers below that 63 is divisible by.

Use the divisibility rules sheet.

Select all the numbers below that 108 is divisible by.

Use the divisibility rules sheet.

Select all the numbers below that 180 is divisible by.

Use the divisibility rules sheet.

Select all the numbers below that 51 is divisible by.

Use the divisibility rules sheet.