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Q: What 5 digit number 4 equals itself in reverse?

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731 and 137

00000

2178

The number is 385.

00 Because 00x00=00 and 00+00=00

60x2

123

32

32 is the smallest two-digit number that can be multiplied by itself to give a four-digit number. (32x32)=1024

An example of an algorithm that will reverse a number is written as such, digit reverse(num), while (num>0) then, digit =num%10. This particular algorithm divides a number by 10 until the original number from the LSD is found.

It is 63.

80 and 625

LET number be any positive integer. SET temp to number. SET reverse to zero. WHILE temp is not zero... { SET digit to temp % 10 (mask LSD using modulo operator) SET temp to integer (temp / 10) (remove LSD) SET reverse to (reverse * 10) plus digit } END WHILE IF reverse equals number { RETURN true (number is palindrome) } ELSE { RETURN false (number is not palindrome) }

21978

000 i think

No, and you do not even if you reverse them.

88

No 5 digit number can equal 12 and so there can be no answer to the question.

They all are.

41286-7953 or 41268-7935

27

No. There's no two digit numbers that could do this. The largest two digit number is 99. If you add 99 to itself, you only get 198, which is much smaller than a four digit number.

It is 99. 99*99 = 9801

The sum of the factorial of each digit is equal to the number itself.

3