We know that 3×5=15
Which of the following statements is incorrect?
When we multiply two numbers, both the numbers are the factors of the product obtained. Here we have 3 and 5, which are the factors of 15.
The product obtained is the multiple of the two numbers. Here we have 15, which is the muliple of both 3 and 5.
Therefore, the statement "15 is a factor of 3" is incorrect because 15 is a multiple of 3.