Question

A number is divisible by 3 and 5.By which other number will that number be always divisible?Show by taking a 5 digit number

Answer 1

Answer:

the number is divisible by 15

Step-by-step explanation:

consider

23715

since the sum of digits of the above number is 18 therefore it is divisible by 3

hence 23715 is divisible by 3

since the last digit of the number is 5 therefore it is divisible by 5

hence 23715 is divisible by 5

since 23715 is divisible by 3and 5 therefore it is divisible by 15