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No, reversing the order of the digits of a two-digit prime number does not always result in a Prime number.

Q: Does reversing the order of the digits of a two digit prime number always result in a prime number?

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No. For example, reversing 23 gets 32.

As a result of the rule that you use the definition of the term - such as significant digits - when finding them for a number.

Your question is incomplete. Adding an even number with an odd number will always result in an odd number. Multiplying an even number with an odd number will always result in an even number.

A rational number is always the result of dividing an integer when the divisor is nonzero.

an odd numberSubtracting an odd number from an even number will always result in an odd number.

Related questions

No because as for example 23 is a prime number but 32 is a composite number

No. For example, reversing 23 gets 32.

any of the following numbers works ...12, 23, 34, 45, 56, 67, 78, 89,

the result is always even

No, not always. When you reverse a two-digit prime number, the result may or may not be a prime number. It depends on the specific number you are reversing.

19

As a result of the rule that you use the definition of the term - such as significant digits - when finding them for a number.

38

It always is a negative number. The result will be the sum of the two digits with a minus sign in front of it, eg, (-4) - (+7) = -4 - 7 = -11.

This follows from the property that the set of integers is closed under addition. This means that any two integers, when added together, must always result in a whole number.

Alberto

The sum of the squares of the digits of 13 is 12 + 32 = 10. The sum of the squares of the digits of this result is 12 + 02 = 1. Because this process results in a 1, this number is a happy number.