The element factorization of 51 = 3•17The number 51 is no a prime number because it is feasible to factorize it. In other words, 51 can be divided by 1, by itself and at the very least by 3 and 17. This is a so called "composite number".

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### Prime numbers prior to 51 chart

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## What is a element number?

### Definition of prime 1

An integer greater than one is dubbed a element number if its just positive divisors (factors) room one and also itself.For example, the only divisors the 11 room 1 and also 11, so 11 is a prime number, when the number 51 has actually divisors 3, 17 and also 51 chin (51 = 3•17), make 51 not a element number.

### Definition of element 2

A optimistic integer the is no divisible without remainder by any type of integer except itself and 1, through 1 often excluded.

Note that:

0 (zero) is no a prime number since it isn"t split by itself. Zero has an infinite number of divisors (any nonzero whole number divides zero). It cannot be created as a product of 2 factors, neither of i beg your pardon is itself, therefore zero is additionally not composite. An ext concisely, zero is no a element or a composite number either. 1 (one) is no a prime nor a composite number. One has only one positive divisor. It can not be composed as a product of two factors, no of i m sorry is itself, so one is additionally not composite. THe number one falls in a course of numbers called units.

### Prime numbers calculator 