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.

What does it mean for a number to be a multiple of another number?

Is 57 a multiple of 5? Explain your reasoning.