there are 4
You had me until "product." The product of 4 digits can't be prime.
The four prime numbers that sum to 135 are 2, 3, 5, and 125. However, since 125 is not a prime number, it is impossible to find four prime numbers that equal 135. Therefore, you cannot express 135 as the sum of four prime numbers.
101 103 107 109
The sum of the first four prime numbers is 17.
you take the four digits and multiply 4 by 4 you get 16 digits
You had me until "product." The product of 4 digits can't be prime.
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.
There are four pair of mirror primes.
1234, 2637, 7777, 2727 are examples of a four digit number. So any random four numbers are four digits.
The four prime numbers that sum to 135 are 2, 3, 5, and 125. However, since 125 is not a prime number, it is impossible to find four prime numbers that equal 135. Therefore, you cannot express 135 as the sum of four prime numbers.
You know that the odd digits have to be in the units places, and the evens in the tens place, so the general solution is: 80 + 60 + 40 + 20 + 9 + 7 + 3 + 1 = 220
101 103 107 109
61 is prime. You cannot make 61 by multiplying four digits.
The sum of the first four prime numbers is 17.
you take the four digits and multiply 4 by 4 you get 16 digits
four The lowest 5 digits prime number is 10007
3 41 43 47