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ss1 · 2009 August 21st, 09:28 PM

following are the properties of the number 1:
1)factors of a number include that number and 1
2)0 and 1 re perfect squares
3)1 is not a prime number

can anyone add to these properties? or correct them if I am wrong?

madboy · 2009 September 10th, 12:08 AM

Factorial of 1 i.e 1! is 0

india_chintan · 2009 September 10th, 04:55 AM

r u sure bout tht mdboy bcoz factorial for any no. say N is nx(n-1)x(n-2)....till 1.. so 1! is not 0 but should be 1. Also 0! is 1. please add to this if i am wrong.

madboy · 2009 September 10th, 05:18 AM

Chintan , you are right.

Sorry , my bad

I actually confused 0! with 1!

Thanks for the correction!

2009 August 21st, 09:28 PM	#1 (permalink)
ss1 Eager! Join Date: Feb 2009 Posts: 90	Properties of 1 following are the properties of the number 1: 1)factors of a number include that number and 1 2)0 and 1 re perfect squares 3)1 is not a prime number can anyone add to these properties? or correct them if I am wrong?

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2009 September 10th, 12:08 AM	#2 (permalink)
madboy 650 and aiming higher Join Date: Sep 2009 Location: Lowell,MA,USA Posts: 349	Factorial of 1 i.e 1! is 0

2009 September 10th, 04:55 AM	#3 (permalink)
india_chintan miles to go b4 i sleep Join Date: Apr 2009 Location: india Posts: 110	r u sure bout tht mdboy bcoz factorial for any no. say N is nx(n-1)x(n-2)....till 1.. so 1! is not 0 but should be 1. Also 0! is 1. please add to this if i am wrong.

2009 September 10th, 05:18 AM	#4 (permalink)
madboy 650 and aiming higher Join Date: Sep 2009 Location: Lowell,MA,USA Posts: 349	Chintan , you are right. Sorry , my bad I actually confused 0! with 1! Thanks for the correction!

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