No.
The prime numbers that sum to 66 are 61, 5, and 2. Specifically, 61 and 5 are both prime, and when added to 2, they total 66. Other combinations of prime numbers do not yield the same sum.
The same way as with smaller numbers, it may take longer. Just keep dividing by prime numbers until all the factors are prime.
The same way as with smaller numbers, it may take longer. Just keep dividing by prime numbers until all the factors are prime.
No. Prime numbers are a subset of whole numbers.
Yes, numbers can have common prime factors.
Prime numbers or relatively prime numbers.
No - co-prime numbers are pairs of numbers which share no positive integer factors apart from 1. Twin prime numbers are a pair of prime numbers with a difference of 2.
Usually, but not necessarily and not if they're prime. All prime numbers have the same number of factors.
Prime numbers are multiplied together in the same way as any integers may be multiplied together.
They are whole numbers.
Usually, but not necessarily and not if they're prime. All prime numbers have the same number of factors.
No, multiplying a set of numbers can only come out as one product. Therefore, two numbers having the same prime factorization is impossible.