Factors of numbers

Front

What is a factor of a number?

Back

A factor of a number is an integer that can be multiplied by another integer to produce that number.

Front

Is 5 a factor of 25?

Back

Yes, because 5 x 5 = 25.

Front

Is 15 a factor of 45?

Back

Yes, because 15 x 3 = 45.

Front

Which of the following is a factor of 12: 2, 3, 4, 6?

Back

All of them (2, 3, 4, 6) are factors of 12.

Front

Which of the following is a factor of 80: 10, 20, 30, 40?

Back

10, 20, and 40 are factors of 80.

Front

Which of the following is a factor of 18: 3, 6, 9, 12?

Back

3, 6, and 9 are factors of 18.

Front

What is the greatest common factor (GCF) of 12 and 18?

Back

The GCF of 12 and 18 is 6.

Front

How do you determine if a number is a factor of another number?

Back

To determine if a number is a factor, divide the larger number by the smaller number. If the result is an integer with no remainder, then it is a factor.

Front

What is the relationship between factors and multiples?

Back

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

Front

Can a prime number be a factor of any number?

Back

Yes, a prime number can be a factor of any number that it divides evenly.