<story><title>Why isn&apos;t 1 a prime number?</title><url>https://blogs.scientificamerican.com/roots-of-unity/why-isnt-1-a-prime-number/</url></story><parent_chain><item><author>frankbreetz</author><text>Funny true story about this: 
One time a man came up to me and handed me his phone, and asked me to call his mom. He was about to pass out and he asked me not call an ambulance (God bless America) , he appeared to have a concussion. 
By this time there was about 10-15 people around him and he could barely talk. I asked him what his phone code was and instead of just giving it to me he said &amp;quot;it&amp;#x27;s the first four prime numbers&amp;quot;. 
Immediately, about five people shout &amp;quot;1,2,3,5&amp;quot;. I am no longer holding the phone, because I handed to someone else to make sure it was okay. 
Sure enough, I was in a mathematical proofs class and we had just discussed this topic. So, I say &amp;quot;one is not a prime number&amp;quot;.
Of course, we get the phone unlocked in the second try with &amp;quot;2,3,5,7&amp;quot; and the guys mom is on the way. Everyone thought I was a genius a hero.</text></item></parent_chain><comment><author>jammygit</author><text>As far as mild-moderate concussions go, there is unfortunately not much to do by way of treatment besides low stimulation rest.&lt;p&gt;I hope this person was okay. Concussions are truly hell when they don&amp;#x27;t clear up nicely.&lt;p&gt;Side note, I was told once by an occupational therapist specializing in brain injury that most concussions are from standing up from a crouch in the kitchen and hitting your head on a corner of a cupboard (MVA&amp;#x2F;sports are very common too). I didn&amp;#x27;t believe her at the time, but I don&amp;#x27;t write it off either.</text></comment>
<story><title>Why isn&apos;t 1 a prime number?</title><url>https://blogs.scientificamerican.com/roots-of-unity/why-isnt-1-a-prime-number/</url></story><parent_chain><item><author>frankbreetz</author><text>Funny true story about this: 
One time a man came up to me and handed me his phone, and asked me to call his mom. He was about to pass out and he asked me not call an ambulance (God bless America) , he appeared to have a concussion. 
By this time there was about 10-15 people around him and he could barely talk. I asked him what his phone code was and instead of just giving it to me he said &amp;quot;it&amp;#x27;s the first four prime numbers&amp;quot;. 
Immediately, about five people shout &amp;quot;1,2,3,5&amp;quot;. I am no longer holding the phone, because I handed to someone else to make sure it was okay. 
Sure enough, I was in a mathematical proofs class and we had just discussed this topic. So, I say &amp;quot;one is not a prime number&amp;quot;.
Of course, we get the phone unlocked in the second try with &amp;quot;2,3,5,7&amp;quot; and the guys mom is on the way. Everyone thought I was a genius a hero.</text></item></parent_chain><comment><author>speg</author><text>You can also dial emergency contacts without unlocking the phone. They are accessible from the medical ID page on iOS, I assume Android has similar.</text></comment>