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What are reversed prime numbers?
Prime numbers that are still prime after their digits are reversed, like (13,31)(17,71)(37,73)(79,97)(107,701)(113,311)
What prime numbers are still prime numbers when their digits are reversed?
Some of them are: 11 13 17 37 and 79
Which prime numbers less than 100 are also prime numbers when their digits are reversed?
13,31 17,71 37,73 79,97
What prime numbers are still prime when their digits are reversed?
one is 17 and 71, another one is 11,
What is a mirror prime number and do both numbers have to be prime in the answer and what are the mirror primes from 1-100?
Mirror primes are pairs of prime numbers whose digits are reversed. (13,31)(17,71)(37,73)(79,97)
What prime numbers when reversed are also prime?
Prime numbers that remain prime when their digits are reversed are called emirps. Some examples of emirps include 13 (31), 17 (71), 31 (13), and 37 (73). These numbers are interesting because both the original number and its reverse are prime numbers.
What number comes next in the sequence 61 691 163 487 4201?
9631. The sequence consists of the prime numbers which, when their digits are reversed, are perfect squares.
How many prime numbers are there whose square has 5 or 6 digits?
solution: we know that there are 25 prime numbers are between 1-100 and 168 prime numbers less than 1000. 100 x 100=10000(5 digits) 999 x 999=998001(6 digits) 1000 x 1000=1000000(7 digits) so our answer should be same as the number of prime numbers between 100 to 999. hence, 168-25=143. 143 prime numbers will be there less than 1000 whose square has 5 or 6 digits.
What is the largest two digits number thst is prime and has prime numbers for both of its digits?
It is: 73 of which 7 and 3 are both prime numbers
What are two prime numbers that if multiplied would generate a 400-digit number?
Any two prime numbers, of about 200 digits each, would work.Any two prime numbers, of about 200 digits each, would work.Any two prime numbers, of about 200 digits each, would work.Any two prime numbers, of about 200 digits each, would work.
What is the largest two-digit number that is prime and has prime numbers for both of its digits?
73 is the largest two-digit number that is prime and has prime numbers for both of its digits.
What are the prime numbers between 10 and 100 that are still prime when reversed?
11 13 17 31 37 71 73 79 97
