Question

Which of the following numbers is not a factor of 15? .(a) 1 .(b) 3 .(c) 4 .(d) 5.​

Answer 1

Step-by-step explanation:

4 is the answer thankyou

Answer 2

(c) 4 is not a factor of 15

Explanation:

• A number that divides exactly and without producing a remainder in to a number is called as factor.
• The number given is 15. The numbers such as 1, 3, 5 and 15 itself are considered as factors of 15.
• It is because,

1 × 15 = 15

3 × 5 = 15

5 × 3 = 15

15 × 1 = 15

• Thus, it is inferred that, among the given list of numbers, except 4 all other are factors of 15.
• Hence option (c) 4 is correct.