As there are infinitely many primes (as Euclid proved circa 300 BC) and not all of them are (or can be) known, it is impossible to answer this question.
(5 x 4 x 3 x 2) = 120 of them, if no digit can be repeated.If digits can be repeated in the same number, then 3,125numbers can be formed.
there are 4
61 42 56 89
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.
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13579
(5 x 4 x 3 x 2) = 120 of them, if no digit can be repeated.If digits can be repeated in the same number, then 3,125numbers can be formed.
there are 4
61 42 56 89
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.
They are: 11 13 17 19 31 41 61 and 71 which makes 8 of them
There are four pair of mirror primes.
infintate as numbers do not stop, so you can keep adding digits at the end of the negative number.
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There are four 2-digit prime numbers that have 4 as one of their digits: 41, 43, 47, and 49. However, 49 is not a prime number because it is divisible by 7. So, the correct answer is three 2-digit prime numbers with 4 as one of their digits.
Prime numbers have many applications. Some examples are: public key cryptography, hash tables, pseudo-random number generators, and ISBN check digits.
10 digits are numbers in the billions.