Topic 7 Review

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

True or False: All numbers have 1 as a factor.

Back

True

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A composite number is a number greater than 1 that has more than two positive divisors.

Front

True or False: The number 1 is considered prime.

Back

False, 1 is neither prime nor composite.

Front

What is the divisibility rule for 3?

Back

If the sum of a number's digits is a multiple of 3, then the number is divisible by 3.

Front

What is the divisibility rule for 10?

Back

If a number ends in 0, then it is divisible by 10.

Front

List the factors of 12.

Back

The factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

List the factors of 3.

Back

The factors of 3 are 1 and 3.

Front

What does it mean if a number is even?

Back

An even number is any integer that is exactly divisible by 2.