Factors and Multiples

Front

What is a factor?

Back

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

Front

What is a multiple?

Back

A multiple is a number that can be divided by another number without a remainder.

Front

What is the only even prime number?

Back

2

Front

What number is a factor of all even numbers?

Back

2

Front

What does it mean if a number is prime?

Back

A prime number has exactly two distinct factors: 1 and itself.

Front

Is 7 a prime number?

Back

Yes, the only factors of 7 are 1 and 7.

Front

What are the first five multiples of 5?

Back

5, 10, 15, 20, 25.

Front

Which of the following is NOT a prime number: 3, 7, 17, 21?

Back

21 is NOT a prime number.

Front

What are the factors of 12?

Back

1, 2, 3, 4, 6, 12.

Front

What is the least common multiple (LCM) of 4 and 5?

Back

20.