Across
- 1. The opposite of prime; a positive integer that has at least one divisor other than 1 and itself.
- 4. The mathematician who conjectured that every even integer greater than 2 is the sum of two primes.
- 5. Primes that have a difference of exactly two, such as 11 and 13."
- 6. natural number greater than 1 that has no positive divisors other than 1 and itself.
- 9. Euclid proved that the list of prime numbers goes on forever; it is ______.
- 10. A special type of prime that takes the form 2p−1.
Down
- 2. The only even prime number in the entire infinite sequence.
- 3. A number that divides another number evenly; primes only have two of these.
- 7. The Greek mathematician who created a ""Sieve"" to find primes by crossing out multiples."
- 8. A term for two numbers that share no common factors other than 1.