Is 1 a Square Number? Watch

chocolatestrawberries
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#1
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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 :confused:


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 =]
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SimonM
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Yes, 1^2 = 1 therefore it is a square number
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Glutamic Acid
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Yep, it was recently voted a square number. 1 = 1^2.
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Unbounded
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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.
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chocolatestrawberries
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(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 :p:
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Unbounded
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(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 :p:
1 is not prime...

here
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SimonM
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(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 :p:
No
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Mr Nonsense
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yes - square number
no -prime
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rtyyuuuiooopp
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thank you sooooooooo much this has always confused me
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Jonny360
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Is 0 a square number?
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james22
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(Original post by Jonny360)
Is 0 a square number?
Yes.
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evazilber57
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1 is not a prime number because by definition a prime number k has TWO divisors: 1 and k


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Smaug123
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(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.
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chocolate fudge
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I am going to eat you
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chocolate fudge
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(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
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simonli2575
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(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.
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Erin smith
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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😊)
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math42
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(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..
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Notnek
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(Original post by 13 1 20 8 42)
Hell of a bump..
I'd put it in my top 5.
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