document.write( "Question 400868: Which number could be the ones digit of a three-digit prime number? A) 0 B) 4 C) 5 D) 7 \n" ); document.write( "

Algebra.Com's Answer #283714 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
If the units digit is $\"0\"$ , the
\n" ); document.write( "number is divisible by $\"10\"$ ,and not prime
\n" ); document.write( "If the units digit is $\"4\"$ ,
\n" ); document.write( "it is divisible by $\"2\"$
\n" ); document.write( "If the units digit is $\"5\"$ , it
\n" ); document.write( "is divisible by $\"5\"$
\n" ); document.write( "If the units digit is $\"7\"$ , the
\n" ); document.write( "number could be prime.
\n" ); document.write( " $\"37\"$ is a prime number
\n" ); document.write( " $\"77\"$ 1s not prime \n" ); document.write( "

\n" );