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Q: How many 2 digit prime numbers are there whose unit digit is greater its tens digit?
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What is largest two digit prime numbers whose digits are also prime?

73 satisfies your condition.


What is the smallest two digit prime number whose digits themselves are prime?

The smallest two-digit prime number whose digits themselves are prime is 23. Both 2 and 3 are prime numbers, and together they form the prime number 23.


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The answer is vague but correct . Take any two prime numbers whose combined digit length is 501 and their product will generate a 500 or a 501 digit number.


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What one-digit number is the product of two consecutive prime numbers?

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What is the largest 3 digit prime number whose square root is a prime number?

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What is the three digit numbers whose tens digit is an odd number that is greater than 10 and less than 20?

Meaningless question.


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