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There is no pair of prime numbers which sum to 101.
Proof :
101 is an odd number
two odd numbers always sum to an even number
to arrive at 101 we need one odd and one even
the only even prime is 2.
the only possible pair is thus 2 and 99.
but, 99 is not prime - it factors to 3, 3, 11.
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If you add or subtract using only prime numbers is the answer always a prime number?
No, as all prime numbers are odd, excluding 2, and when you add two odd numbers you get an even number. This even number can't be a prime number as it will be divisible by 2. 101 and 31 are both prime, but 101+31 is 132.
If you add two prime numbers together what do you get?
You can get another prime (only if one of the numbers added is 2), for example, 101 + 2 = 103. If you add together two odd prime numbers, you will get an even number, which will not be a prime number. (An even number is a number that is divisible by 2; if such a number is greater than 2, it is not a prime number.)
How many numbers go into 101?
Two: 1 and 101 (101 is a prime number).
What two prime numbers add up to 119?
No two prime numbers can add to 119.
What two prime numbers can be multiplied to get 202?
There are no two prime numbers that can be multiplied to get 202.
