# Is 1 a Square Number?Watch

#1
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 =]
0
10 years ago
#2
Yes, therefore it is a square number
0
10 years ago
#3
Yep, it was recently voted a square number. 1 = 1^2.
0
10 years ago
#4
1 is a square number 1 = 1x1

n is not the number of terms. n+1 is the number of terms.

I did Add Maths last year. don't worry, it'll all come together quite quickly - there aren't very many topics in the course fortunately

good luck.
1
#5
(Original post by GHOSH-5)
1 is a square number 1 = 1x1

n is not the number of terms. n+1 is the number of terms.

I did Add Maths last year. don't worry, it'll all come together quite quickly - there aren't very many topics in the course fortunately

good luck.
cool, thanks
so 1 is offically a prime number too?

ahh that would make sense, as you have to have nCo along with the rest of the terms...=]

Thanks for the reassurance ....yeah, it's just a pain to re-revise all the GCSE stuff again though
0
10 years ago
#6
(Original post by chocolatestrawberries)
cool, thanks
so 1 is offically a prime number too?

ahh that would make sense, as you have to have nCo along with the rest of the terms...=]

Thanks for the reassurance ....yeah, it's just a pain to re-revise all the GCSE stuff again though
1 is not prime...

here
0
10 years ago
#7
(Original post by chocolatestrawberries)
cool, thanks
so 1 is offically a prime number too?

ahh that would make sense, as you have to have nCo along with the rest of the terms...=]

Thanks for the reassurance ....yeah, it's just a pain to re-revise all the GCSE stuff again though
No
0
10 years ago
#8
yes - square number
no -prime
0
5 years ago
#9
thank you sooooooooo much this has always confused me
0
5 years ago
#10
Is 0 a square number?
0
5 years ago
#11
(Original post by Jonny360)
Is 0 a square number?
Yes.
0
5 years ago
#12
1 is not a prime number because by definition a prime number k has TWO divisors: 1 and k

Posted from TSR Mobile
0
5 years ago
#13
(Original post by evazilber57)
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.
0
4 years ago
#14
I am going to eat you
1
4 years ago
#15
(Original post by Smaug123)
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.
Seriously dude
0
4 years ago
#16
(Original post by Unbounded)
n is not the number of terms. n+1 is the number of terms.
Only when n is a positive integer.
0
3 years ago
#17
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😊)
0
3 years ago
#18
(Original post by Erin smith)
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😊)
Hell of a bump..
2
3 years ago
#19
(Original post by 13 1 20 8 42)
Hell of a bump..
I'd put it in my top 5.
1
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