89
He was a great mathematician.he is known for fabonacci number,fabonacci prime and many more.
There is no "the" prime number in that range - there are 21 of them. If you want "the" prime number you will need to be more specific.
A beprisque number nnn is an integer which is either one more than a prime number and one less than a perfect square, or one more than a square and one less than a prime. The 5th such number is 10.
13.
The sum of all prime numbers less than ten is 17. Pick a number 18 or higher.
Lots of places. If you count the leaves in a flower or factor each fibonacci number to the fibonacci number before it, artichokes, seeds, dragonflies, pianos, bones, phi, pascal's triangle and MUCH MUCH MORE!!!!!
5
Numbers can be checked to see if they are primes simply by factoring them. Every prime number has exactly two factors, 1 and the number itself. If there are more or less than 2 factors, the number is not a prime. 1 has only one factor so it is not a prime, and composite numbers have 3 or more factors.
87 is the only 2-digit number that is 6 greater and 13 less than a square, but it is not prime.
1, 2, 3 ,5 , and 7 are all prime numbers less than 10. The lower the number is, the more likely it is to be prime. There is only one number, 2, that is even.
48
11 13 17.