Factors and Multiples

Front

What are multiples of a number?

Back

Multiples of a number are the results of multiplying that number by integers. For example, the multiples of 4 are 4, 8, 12, 16, 20, etc.

Front

List the factors of 42.

Back

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.

Front

What are the factors of 20?

Back

The factors of 20 are 1, 2, 4, 5, 10, and 20.

Front

What is a prime number?

Back

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

Front

Is 2 a prime number?

Back

Yes, 2 is a prime number because its only factors are 1 and 2.

Front

What is the difference between factors and multiples?

Back

Factors are numbers that divide another number evenly, while multiples are the result of multiplying a number by integers.

Front

How can you find the factors of a number?

Back

To find the factors of a number, divide it by integers starting from 1 up to that number and check which divisions result in whole numbers.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

Can a number be both a factor and a multiple of another number?

Back

Yes, a number can be both a factor and a multiple of another number. For example, 4 is a factor of 8 and also a multiple of 2.

Front

What is the prime factorization of 42?

Back

The prime factorization of 42 is 2 x 3 x 7.