### All non prime number are composite-number...?

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##### Answer

False

##### Explanation

This is an other interesting question. Be carefull about the statement of question "All non prime number are composite-number" Here we have to understand about Prime Number, Composite Number and Non Prime Number

Prime number

A number is greater than 1 is called a prime number, if it has only two factors, 1 and the number itself i.e 2, 3, 5, 7, 11 ... also notice that prime number are start form 2.

Composite Number

"A number that can be divided exactly by numbers other than 1 or itself is called a composite number" i.e 4, 6, 8, 9, 10... notice that 1 is not included in composite number and 2, 3 are in prime number list therefore composite number are starting from 4.

Non Prime number

Non prime numbers are the integers that are not prime numbers, i.e. zero (0), One (1), All Composite numbers
All negative integers (-1, -2, -3, -4, ....) are also non prime number.

Therefore all non prime number (specially 0, 1, negative integers etc) are not composite-numbers. And above statement is false.

##### NUMBERING SYSTEM (MATH SHORTCUT TRICKS)

Find the prime number from 1 to 100 just in 5 second (MATH PRIME NUMBER SHORTCUT TRICK from 1 to 100 number) ?
Find a large number "A" is prime number or not (MATH PRIME NUMBER SHORTCUT TRICK By using Square Root method) ?
Find the composite number from 1 to 100 just in 5 second (MATH COMPOSITE NUMBER SHORTCUT TRICK from 1 to 100 number) ?
##### NUMBERING SYSTEM QUESTION

Is zero even number or odd number (Even, Odd, Both, Neither even nor odd)...?
What is the lowest odd prime number (2, 3, -2, -3)...?
What are the consective prime number (2 and 3, 5 and 7, 11 and 13, all above)...?
Which number is prime number (1, 39, 49, None)...?
1 is prime or composite number (Prime, Composite, both, Neither Prime nor composite)..?
Give me numbers which are neither prime nor composite (0, 1, 0 and 1, None)?
All non prime number are also the composite number. (True or False)?
Which number neither prime nor composite (1, 29, 39, None)...?
What is the largest composite number less than 20 (17,18,19,20). ?
What is largest composite number less then 30 (23, 25, 28, 29)?
The number 4, 6, 8, 9, ... are (odd, even, prime, composite number) ...?
All even number greater then 2 are composite number (True, False)... ?
How many prime number are between 10 and 30 (5, 6, 7, 8)?
How many prime number are between 1 and 100 (25, 27, 29, 31)?
Which of the following is prime number (703,731,797,729)...?
##### MATH SHORTCUTS

Addition Shortcuts
Division Shortcuts