Is there any natural number having no factor at all?

Is there are natural numbers which have no factor at all?

All natural numbers have minimum two factors

Does every natural number have a predecessor?

Find the number of all 6-digit natural numbers having exactly three odd digits and three even digits.

How many natural numbers are factors of exactly one of the numbers 675 and 1080?

Fill in the blanks in the following: A number having only two factors is called a ........ A number having more than two factors is called a ..... 1 is neither ................ nor .................. The smallest prime number is .......... . The smallest composite number is ........... .

Given that the length and breadth of the rectangle are only natural numbers, find the dimensions of all possible rectangles which have an area of 36 sq. cm.

All prime numbers have only two factors

Are all natural numbers also whole numbers?

Can any fraction have a natural number as its reciprocal?