You can check this in any list of prime numbers. The answer is yes. Note that this doesn't apply to larger numbers.
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Every 9-digit combination of those numbers is a multiple of 3. None of them will be prime.
No, not every two-digit multiple of six is next to a prime number. A multiple of six will always be an even number, divisible by both 2 and 3. Prime numbers, on the other hand, are only divisible by 1 and themselves. Therefore, there will be even numbers that are multiples of six that are not next to prime numbers.
yep e.g 18 and 17,,, 24 and 23...... :(
9797 is the largest two digit prime number.
Because if they were even they would be a multiple of 2 and thus not prime.