Just wondering if this is true or false!

Just wondering if this is true or false!

Find all the prime numbers p such that 4p^2+1 and 6p^2+1 are prime numbers.

Marie remembers her PIN because it is between 1000 and 1500 and it is the product of two consecutive prime numbers. What is her PIN?

please show me steps to this

How do you find the least common multiple of two or more numbers?

2 3 4 9 11 24 Noneoftheabove

If all the primes where (2,3,5) then you can multiply them together to get 30, but then you add 1. Like how 64 is made up of 2x2x2x2x2x2, which can't this new number be made up of multiple smaller...

i have to prove why 7 cant be the difference of any prime number

confused between concept of real numbers and prime number used in the question

I am not trained in mathematics at all and I was thinking about a certain problem. I'm not sure if there's a name for this problem or how to search for work done on it before. Assume...

explain

The sum of 2 postive prime numbers is a prime number and 3 times that sum is an odd number. Which of the following prime numbers must be one of the original prime numbers?? A)2 B)3 C)5 D)7 E)11 I...

Brenda is thinking of a prime number between 40 and 50. Josh is thinking of a prime number between 10 and 20. The difference between the two numbers is 26. What are the two numbers?

Find the smallest possible value of the whole number "y" such that the product of "y" and 6600 is a square number. To make two identical numbers from 6600 x Y, we add prime...

It is given that p is a prime number and p > 5. a) Show that p= 6n + 1 or p = 6n + 5 for some positive integer n. b) Hence, show that p2 + 2 is divisible by 3. How...

I got this question when I was doing my SOF Olympiad Practice.The Solution say's the answer is (B).But I don't understand how.....

is there an easier way to find out how many prime numbers are under 100 without going through each number? Thanks!

which number is prime?

Each of the first ten prime numbers is written on an individual piece of paper and put into a hat. If two are drawn at once, so that means without replacement, what is the probability that the sum...

hint- begin by taking its square root