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The smallest Prime number in which all of the digits are also prime is 2.
The smallest multi-digit prime number in which all of the digits are also prime is 23.
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Why are all the prime numbers are odd numbers?
All prime numbers are not odd numbers. 2 is an even prime number, and it is the only even prime number because all other even numbers have 2 as one of their factors.
Do all prime number have to be whole number?
Yes, prime numbers are whole numbers, by definition.
What are all of the composite numbers and all of the prime numbers?
It is impossible to list the infinite number of prime numbers and composite numbers.
What are numbers that are not prime?
A number that is not a prime number is called a composite number because it can be made by multiplying prime numbers together. For example, 6 is a composite number that is the product of multiplying the prime numbers 2 and 3 together.
What are special prime numbers?
All prime numbers are special numbers because they help us to find the lowest common multiple of numbers and their highest common factor.
