Question

Show that 15 is a factor of 1605

Answer 1

Step-by-step explanation:

3 and 5 are both factors of 15.

if the number is divisible by both 5 and 3 then it will also be divisible by 15.

1+6+0+5= 12

3 x 4 = 12.

•°• 1605 is divisible by 3

1605 ends with number 5 so it is divisible by 5.

•°• 15 is a factor of 1605