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What name is given to prime numbers that you can reverse to make another prime number?
A mirror prime.
What are the numbers that are less than 100 but are prime numbers that has a reverse number with a prime number too?
(13,31)(17,71)(37,73)(79,97)
When you reverse two-digit prime numbers are they also prime?
No. For example, 61 is a prime number; 16 is not a prime number.
What are the first three emirp numbers?
An emirp number is a prime number which, when you reverse the digits, produces a different prime number. Therefore, there are no single-digit emirp numbers. The first three emirp numbers are: 13, 17, 31
Prime numbers which are multiples of 4?
None. If it is a multiple of another number, in this case 4, it is not a prime number.
What name is given to prime numbers that you can reverse to make another prime number?
A mirror prime.
What are the numbers that are less than 100 but are prime numbers that has a reverse number with a prime number too?
(13,31)(17,71)(37,73)(79,97)
10.) A two-digit number is prime. When you reverse the digits, that number is also prime. What could the number be List three possibilities.?
Some numbers that you can get when you reverse the digits and they are still prime numbers are: 403 ÷ 13 = 31 2,701 ÷ 37 = 73 1,207 ÷ 17 = 71
What 3 prime numbers multiplied equal 1597?
1597 is a prime number. You cannot multiply prime numbers to create another prime number.
When you reverse two-digit prime numbers are they also prime?
No. For example, 61 is a prime number; 16 is not a prime number.
What is a number that is relatively prime?
A number is relatively prime to another number or set of numbers when their GCF is 1.
What are the first three emirp numbers?
An emirp number is a prime number which, when you reverse the digits, produces a different prime number. Therefore, there are no single-digit emirp numbers. The first three emirp numbers are: 13, 17, 31
Prime numbers which are multiples of 4?
None. If it is a multiple of another number, in this case 4, it is not a prime number.
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 numbers make 56 prime?
Numbers cannot "make" another number prime. If you are looking for the prime factorization of 56, it is 23 * 7.
When a number is divisible by another number what is it?
All numbers are divisible by 1. So, apart from the number 1, all numbers are divisible by another number. These numbers are therefore prime or composite.
How many district composite numbers can be formed by adding 2 of the first prime numbers?
The first two prime numbers add up to another prime number.
