Question

All numbers divisible by both 151515 and 121212 are also divisible by

Answer 1

Answer:

3

Step-by-step explanation:

so first we should find if 151515 is divisible by 2

the rule for 2 is if the last digit is 0,2,4,6,8 or an even number

so at the last number is not an even number so it is not divisible by 2

but 121212 is divisible by 2

but also the the 151515 is not divisible by 2

so the answer is not 2

now let's check if 151515 is divisible by 3

the rule is if the sum of the digits is divisible by 3

so we need to add 1+5+1+5+1+5=18

18 comes in 3 table

so 151515 is divisible by 3

now let's check if 121212 is divisible by 3

so we need to add 1+2+1+2+1+2=9

9 comes in 3 table

so 121212 is divisible by 3

so both the numbers are divisible by 3

so the answer is 3