can a whole number ending in 8 be prime
See what you think.
http://mathforum.org/dr.math/faq/faq.prime.num.html
i do not know
To determine if a whole number ending in 8 can be prime, we need to understand the properties of prime numbers. A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
The rule of divisibility for prime numbers states that if a number is divisible by any number other than 1 and itself, it is not prime.
Now let's consider whole numbers ending in 8. If the last digit is 8, the number is necessarily even because 8 is divisible by 2. Therefore, any whole number ending in 8 will be divisible by 2 and, by definition, cannot be prime.
In conclusion, a whole number ending in 8 cannot be prime because it is always divisible by 2.