The answer to your question is.... 37!
Qualifications:
-2 - digit number
-less than 47
-product of digits is 21
The number 37 meets all of these requirements. 🌟
You had me until "product." The product of 4 digits can't be prime.
The number is 83.
-10
The four numbers are: 113, 131, 151 and 191. For the product of the digits to be prime, the number must contain 2 ones - which greatly simplifies the exercise.
73 is the largest two-digit number that is prime and has prime numbers for both of its digits.
No, reversing the order of the digits of a two-digit prime number does not always result in a prime number.
61 is prime. You cannot make 61 by multiplying four digits.
73 is the largest 2 digit number that is both prime and has prime numbers for both of its digits.
679 is the product of the largest single-digit prime number and the largest two-digit prime number.
Find the greatest product of five consecutive digits in the 1000-digit number.7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450
The largest 3 digit number whose digits are all primes is 777. The largest 3 digit number with different prime digits is 753.
The number is 23.