Seven times sum of digits
Riddle:
What is the smallest whole number equal to 7 times the sum of its digits?
Answer:
Answer: 21. Explanation: 2 + 1 = 3. 7×3 = 21, which matches the number.
What is the smallest whole number equal to 7 times the sum of its digits?
Answer: 21. Explanation: 2 + 1 = 3. 7×3 = 21, which matches the number.