Divisibility for Factors and Multiples

The video tutorial explains how to identify factors and multiples of whole numbers using division. It begins by demonstrating that 2 and 7 are factors of 14, as their product equals 14. The tutorial then explains that a factor divides a number without a remainder, making the number a multiple of its factors. An example is given to show that 5 is a factor of 70, as dividing 70 by 5 results in a quotient of 14 with no remainder. Conversely, 57 is shown not to be a multiple of 5, as division leaves a remainder. The lesson concludes by summarizing the use of division to recognize factors and multiples.

Which of the following is a factor pair of 14?

• 1 and 14

• 3 and 5

• 2 and 7

• 4 and 6

What does it mean if a number is a factor of another number?

• It divides the number without a remainder.

• It divides the number with a remainder.

• It is larger than the number.

• It is a prime number.

How can you check if a number is a factor of another number?

• By subtracting the numbers.

• By dividing the number and checking for no remainder.

• By multiplying the numbers.

• By adding the numbers together.

Is 5 a factor of 70?

• No, because 5 times 15 equals 70.

• Yes, because 5 times 13 equals 70.

• Yes, because 5 times 14 equals 70.

• No, because 5 times 12 equals 70.

Why is 57 not a multiple of 5?

• Because 57 is less than 5.

• Because 57 is a prime number.

• Because 57 is an even number.

• Because 57 divided by 5 leaves a remainder.