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How about 2178?
I started off the problem as follows:
First off the number is in the form of 1000*a + 100*b + 10*c + d. If a is any higher than 2, then when it's multiplied by 4 it won't be 4 digits any more, so a must be either 1 or 2. 10*b + a must be divisible by 4, because the reversed number of 1000*d + 100*c + 10*b + a must be divisible by four, and any number divisible by four has its last two digits divisible by four. That means that a can't be 1 because no multiply of four has a 1 in the ones digit. As a matter of fact, the only multiples of four that are less than 100 with a 2 in the ones place are 12, 32, 52, 72, and 92. 2500 doesn't work out, and when it is multiplied by 4, it becomes 5 digits. Therefore, b must be 1 or 3. The maximum, 2399, when multiplied out is 8796. That means that there will be no carry over from the multiplication of the previous digits, and that since 2*4 = 8, d must be 8. So far, we have a = 2, b = 1 or 3, and d = 8. That leaves 20 different numbers to check. I brute force checked them to find this one.
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∙ 14y ago
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A two digit is 3 less than 7 times the sum its digit if the digit reversed the new number is less than the original number what is the number?
There are 4 possible answers: 32, 53, 74 and 95.
Two digit is 3 less than 7 times the sum its digit if the digit reversed the new number is less than the original number what is the number?
There are 4 possible answers: 32, 53, 74 and 95.
My tens digit is 2 times your hundreds digit My hundreds digit is 4 My ones digit is a factor of your tens and hundreds digit Who am I?
one
What is the sum of all 4 digit numbers that are the same when their digits are reversed?
The sum of all palindromic numbers from 1001 to 9999 is 495000.
What number am I MY tens digit is 3 more then my thousand digit my ones digit is 2 times my hundreds digit my tens digit is 4 times my hundreds digit my tens digit is 1 more than 7?
69
Which four digit number ends up with it's digits reversed when you times it by four?
2178 * 4 = 8712
What 4 digit number becomes reversed when mul tiplied by 9?
1089! times 9 is 9801. I'm really bored.
When 4 digit number multiplied by 4. it's digit gets reversed. find the number?
2178. 2178 x 4 = 8712
A two digit is 3 less than 7 times the sum its digit if the digit reversed the new number is less than the original number what is the number?
There are 4 possible answers: 32, 53, 74 and 95.
Two digit is 3 less than 7 times the sum its digit if the digit reversed the new number is less than the original number what is the number?
There are 4 possible answers: 32, 53, 74 and 95.
How many times does 4 occur at tense place if we write down all the two digit numbers?
10
What is next to number series 15 225 3325 44325 5?
next number to this series is 554325. its look like this 15--add 1 to first digit and we get 2 and repeat two times and leave other digit.225 225-- its first digit is 2 and add 1 to it get 3 and write two time and write remaining digit as 3325. 3325-- its first digit is 3 and add 1 to it get 4 and write two time and write remaining digit as 44325. 44325-- its first digit is 4 and add 1 to it get 3 and write two time and write remaining digit as 554325.
What is the greatest 4-digit number you can write?
9999
The thousands digit of a 4-digit number is 4 greater than the hundreds digit The tens digit is 2 times the Thousands digit The ones digit is one-half the thousands digit What is the number?
4082 Since the tens digit is 2 times the thousand digit, it must be an even digit. So it can be 8, 6, 4, or 2. But, the thousands digit is 4 greater than the hundred digit. So that the hundred digit must be 0, the thousands digit must be 4, the hundreds digit must be 8, and the ones digit must be 2.
What is the sum of all 4 digit numbers that are the same when their digits are reversed?
The sum of all palindromic numbers from 1001 to 9999 is 495000.
Write the largest 4 digit twice?
9999 9999
My tens digit is 2 times your hundreds digit My hundreds digit is 4 My ones digit is a factor of your tens and hundreds digit Who am I?
one
