I Have Three DigitsPro Problems > Math > Number and Quantity > Number Theory > Digits
I Have Three Digits
I am a three digit number, and the following things are true about me:
- The product of two of my digits is 8.
- The sum of my digits is 13.
- My first digit is four times my second digit.
What number am I?
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Find the smallest positive integer which must be added to 30504 so that the resulting number is a palindrome.
Note: a palindrome is a number in which the digits would read the same forward and backward.
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I'm a three digit number. My first two digits multiply to 12, and my last two digits add to 14. What number am I?
When Shrek asks Fiona for her telephone number, Fiona is a bit coy about it, and tells Shrek the following information:
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- The first three digits are in ascending order.
- The second three digits are in descending order.
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- My first three digits are the square of an integer less than twenty.
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What number should Shrek dial?
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I am a four digit number.
The sum of my digits is 20.
The product of my digits is 600.
The difference between my first two digits is 2, and the sum of my middle two digits is 11.
What number am I?