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What are prime number and composite numbers?
a prime number is a number that you can plus by one
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 ...
Why is it when you multiply two prime numbers you get a number with three or four factors?
If the two prime numbers are different: You get the two prime numbers, plus 1, plus the product. For example, if you multiply 2 x 3 = 6, the factors of 6 are 2, 3, 1, and 6. If the two prime numbers are the same: You get the prime number, 1, and the product. For example 2 x 2 = 4. The factors of 4 are 2, 1, 4.
What is a number with exactly 13 factors?
4096 is the smallest one. Since the number of factors depends on the exponents of the prime factors, plus one, multiplied together, the set of numbers that meets the requirements are of the form: p12, where p is a prime number.
Is 4 plus 6 a prime number of 20?
NO!!!! Other than '2' all prime numbers are odd numbers. 4,6,10 & 20 are all even so they are not prime numbers.
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 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.
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 ...
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
Is number 5x3x17 plus 17 a prime number?
No. (5x3x17) + 17 =255 + 17 =272 (This is not prime.)
What is the smallest number for n for which n2 plus n plus 17 is not a prime number?
n = 5.
Is 9x3 plus 12x2 a prime number?
yes
What is the sum of the smallest odd prime number and the largest prime number less than 100?
It is: 3 plus 97 = 100
What is P plus P plus N in prime numbers?
It would always be a natural number.
What prime number squared plus 3 gives an odd number?
22 + 3 = 7 Since 2 is the only even prime number, this is the only number for which this holds true.
What number's cube root is 1 more then the smallest prime?
The number 27 has a cube root of 3, which is 2 (the smallest prime) plus 1.
