Heyy This might seem like a bit of a stupid question, but I was wondering whether 1 actually officially is a square number or not? It's always confused me
Secondly, in Binomial Expansion... say you have (a+b)^n, then is it true that n=the number of terms? Any general help on that topic would be great, I'm doing Additional Maths in Year 11 and finding the whole "combinations" etc. stuff quite difficult Thanks!
EDIT: I MEANT TO WRITE PRIME NUMBER! woops, I'm really tired, so excuse that =]
1 is not a prime number because by definition a prime number k has TWO divisors: 1 and k
The main reason is that if 1 is considered prime, then you break "unique factorisation", because 5 = 5 times 1 then becomes a different factorisation of 5 into primes.
The main reason is that if 1 is considered prime, then you break "unique factorisation", because 5 = 5 times 1 then becomes a different factorisation of 5 into primes.
1 is not a prime number as it is divided by one only. Though it is being divided by itself and 1, it is only being divided by one, or itself (if that makes sense😊)
1 is not a prime number as it is divided by one only. Though it is being divided by itself and 1, it is only being divided by one, or itself (if that makes sense😊)