Odd + Odd = Even Even + Odd = Odd Even + Even = Even All primes are odd except 2 So to obtain 86479 which is odd one of the prime has to be 2 (Even). Therefore the other number is 86477 which is also a prime. Here the positive difference is 86477 - 2 = 86475.
If the question was to find the difference between the prime factors of 86479 then 17 and 5087 are the only 2 prime factors for 86479. So the positive difference here is 5070.
Their positive difference is 86475.
(Here the sum of two PRIME NUMBERS is an odd number. So, it is a must that, one prime number is EVEN, and it SHOULD be 2)
The numbers are 86477 and 2
What is the product of two largest three digit prime numbers which have 3 in their unit place? Note: Two largest = Largest and second largest
Is it possible to write down 1,2,3..100 in some order (one after an other), such that the sum of any two adjacent numbers is a prime number?
