0
What are two prime numbers less than 20 whose sum is also a prime number?
Wiki User
∙ 14y ago
2 + 3 = 5
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is largest two digit prime numbers whose digits are also prime?
73 satisfies your condition.
What is the smallest two-digits prime number whose digits are also prime themselves?
23
Is it true or false that only odd numbers are prime numbers And why?
False because 2 is an even number which is also a prime number.
Is there any prime numbers that are square numbers?
No, there are no prime numbers that are also square numbers. Prime numbers are only divisible by 1 and themselves, while square numbers have integer square roots. Since the square root of a prime number is not an integer, a prime number cannot be a square number.
What is the lowest prime number that has all of the numbers prime?
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.
What are three prime numbers where the average is also a prime number?
3, 5, and 7 are three prime numbers whose average is 5.
What is the smallest numbers whose prime factors are the consecutive prime number from 20 and onwards?
There are infinitely many prime numbers, and also infinitely many twin primes so there is no answer to the question.
What is a emirp number?
"emirp" is "prime" spelled backwards. An emirp number is a prime number whose reverse is also a prime. However, palindromic primes are excluded. So 13 / 31 are emirp numbers.
What is the first prime number whose successor is also a prime number?
2
What is largest two digit prime numbers whose digits are also prime?
73 satisfies your condition.
What are even numbers that are also prime numbers?
The only even prime number is 2.
What are two prime numbers whose sum is also prime?
2 + 3 = 5 2 + 5 = 7 2+ 11 = 13 2 + 41 = 43 The numbers only work with 2 because adding odd numbers together equals an even number. 2 is the only even prime number and thus adding any other prime numbers together will not equal a prime.
Which of the numbers in questions 1-3 are prime numbers?
4
Are all prime numbers also odd numbers?
Yes, every prime number, except for the number 2, is odd.
What is the smallest two-digits prime number whose digits are also prime themselves?
23
Is it true or false that only odd numbers are prime numbers And why?
False because 2 is an even number which is also a prime number.
What number has 3 prime numbers in it but is also a factor?
30 has three prime numbers and is a factor of 60.
