WITHOUT ACTUAL DIVISION HOW TO FIND THAT ANY NUMBER IS A PRIME NUMBER..
FOR SMALL NUMBERS WE CAN SEE N UNDERSTAND BUT PLZ TELL HOW TO FIND OUT THAT A 3/4 DIGIT NUMBER NO. IS A PRIME NUMBER...
PLZ..NO SPAMS...
anu522:
yes
no time
sry
but for what
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for 3 or 4 digit
if it has 5 or 0 in unit place it is composite
if it has 2 in unit place it is divided by 2 or 4
if it has 5 or 0 in unit place it is composite
if it has 2 in unit place it is divided by 2 or 4
composite not prime..
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