Number 47 is a prime number.

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. Therefore we consider 47 as a prime number, because:

- 47 is a natural number greater than 1,
- 47 is not a product of 2 smaller natural numbers (it can be divided only by 1 and itself)

Number of factors: 2.

List of factors/divisors: 1, 47.

Parity: 47 is an odd number.

Perfect square: no (a square number or perfect square is an integer that is the square of an integer).

Perfect number: no, because the sum of its proper divisors is 1 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 40 no | 41 yes | 42 no | 43 yes | 44 no | 45 no | 46 no | 47 yes | 48 no | 49 no | 50 no | 51 no | 52 no | 53 yes | 54 no |
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