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253 = 11 x 23. 17! is by definition divisible by the numbers 1 - 17 which includes 11. Therefore the sum can be written : S = 11(23 + 17!/11) Consequently, there are least two factors (other than the product and 1), one of which is the number 11. Therefore the result cannot be a Prime number.
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∙ 13y ago
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Does x squared plus x plus 41 always equal a prime number?
No. it's not a prime number when x = 40, 41, 81,82 ...
Can a odd number plus 1 equal a prime?
1+1=2
Is 2222 to the power of 5555 plus 5555 to the power of 2222 equal to a prime number or not?
Not
What are prime number and composite numbers?
a prime number is a number that you can plus by one
What prime number plus what prime number will give you 54?
47 + 7
What two prime numbers equal 98?
19 plus 79
What is prime plus prime?
A prime plus another prime is at the very least going to be an even number since all primes (with the exception of 2) are odd.
C plus plus code that determine prime number?
#include <iostream.h> main() { int a; cout<<"enter a number : "; cin>>a; cout<<endl; if (a%2-1) cout<<"it is a prime number"; else cout<<"it is not a prime number" return 0; } ------------------------------------------ output: enter a number : 30 it is a not a prime number
What does a minus and a plus equal?
a minus and a plus equal a minus number yeh dude
Is number 5x3x17 plus 17 a prime number?
No. (5x3x17) + 17 =255 + 17 =272 (This is not prime.)
Can even numbers from 4-100 equal a prime plus a prime?
Yes for example 5+11 = 16
What are the two prime numbers that equal 92?
They are 31 plus 61 = 92
