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Is a prime number like a even number?
no, a prime number is any number that can only be divided evenly by itself and one. examples of prime numbers are (1,3,5,7,11,13,17,19). Even numbers are any number that can be divided by two evenly. some examples are (2,4,6,8,10,12,14,16,18,20)
Are there any even even prime numbers?
Yes, one and only even prime number is two. Since prime numbers are by definition only divisible by one and itself, there can be no more even prime numbers(as even are defined to be divisible by two). == == Other than 2, all even numbers are composite. Every single even number is divisible by 2.
Is the difference of two prime numbers a prime number?
Not necessarily. 71 is a prime number, 7 is a prime number, and 71-7= 64, which is NOT a prime number. In most cases, the difference of two prime numbers will not be a prime number. All prime numbers greater than 2 will be odd numbers. The difference between two odd numbers will be an even number. Unless that even number is 2, it is not a prime number. Here are some additional examples: 19, 13: difference 6, not prime 23, 7: difference 16, not prime 53, 31: difference 22, not prime 61, 59: difference 2, prime 113, 109: difference 4, not prime 293, 283: difference 10, not prime 331, 101: difference 230, not prime
Do prime numbers have to be odd and composite numbers have to be even?
No. All prime numbers except for the number 2 are odd. However, most odd numbers are composite numbers. All even numbers greater than 2 are composite numbers. So, prime numbers do not need to be odd, since one prime number is even. Also, composite numbers do not need to be even.Here are some composite odd numbers:9 = 3 x 333 = 3 x 1175 = 5 x 15
What number is a prime number?
Here are some examples. EX:2,3,7,11,13,19 Prime numbers are numbers that are only divided by themselves and one. So any number that can only be divided by 2 other numbers or less is a prime number!
