1 million
Start with the smallest multiple of 13 and continue with the next smallest until finding one that fits the specifications. 13, sum of digits is 1 + 3 = 4 which is not prime 26, sum of digits is 2 + 6 = 8 which is not prime 39, sum of digits is 3 + 9 = 12 which is not prime 52, sum of digits is 5 + 2 = 7 which is prime So, 52 is the smallest positive multiple of 13 for which the sum of its digits is prime.
2
Divisibility Rules 2 if it is even 3 if the sum of digits is a multiple of 3 4 if the last two digits is a multiple of 4 6 if it is divisible by 2 and 3 8 if the last three digits is multiple of 8
24
16
if it's divisible by 8 then it a multiple of 8, the smallest one with two digits is 8x2=16 ...unless it can be negative numbers, in which case the answer is 8 * -12 = -96
The unit digits are 2/4/6/8/0
The smallest multiple of 8 and 14 is 56.
smallest 8 digit number with three different digits
0 or 2 or 4 or 6 or 8 .
no, 2+8+4+2 (the digits) is 16 which is not a multiple of three. So it's not a multiple of 6 also
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