Is 1661 a prime number? What are the divisors of 1661?

## Parity of 1 661

1 661 is an odd number, because it is not evenly divisible by 2.

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## Is 1 661 a perfect square number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 1 661 is about 40.755.

Thus, the square root of 1 661 is not an integer, and therefore 1 661 is not a square number.

## What is the square number of 1 661?

The square of a number (here 1 661) is the result of the product of this number (1 661) by itself (i.e., 1 661 × 1 661); the square of 1 661 is sometimes called "raising 1 661 to the power 2", or "1 661 squared".

The square of 1 661 is 2 758 921 because 1 661 × 1 661 = 1 6612 = 2 758 921.

As a consequence, 1 661 is the square root of 2 758 921.

## Number of digits of 1 661

1 661 is a number with 4 digits.

## What are the multiples of 1 661?

The multiples of 1 661 are all integers evenly divisible by 1 661, that is all numbers such that the remainder of the division by 1 661 is zero. There are infinitely many multiples of 1 661. The smallest multiples of 1 661 are:

## Numbers near 1 661

### Nearest numbers from 1 661

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