Is 695 a prime number? What are the divisors of 695?

## Parity of 695

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

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## Is 695 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 695 is about 26.363.

Thus, the square root of 695 is not an integer, and therefore 695 is not a square number.

## What is the square number of 695?

The square of a number (here 695) is the result of the product of this number (695) by itself (i.e., 695 × 695); the square of 695 is sometimes called "raising 695 to the power 2", or "695 squared".

The square of 695 is 483 025 because 695 × 695 = 6952 = 483 025.

As a consequence, 695 is the square root of 483 025.

## Number of digits of 695

695 is a number with 3 digits.

## What are the multiples of 695?

The multiples of 695 are all integers evenly divisible by 695, that is all numbers such that the remainder of the division by 695 is zero. There are infinitely many multiples of 695. The smallest multiples of 695 are:

## How to determine whether an integer is a prime number?

To determine the primality of a number, several algorithms can be used. The most naive technique is to test all divisors strictly smaller to the number of which we want to determine the primality (here 695). First, we can eliminate all even numbers greater than 2 (and hence 4, 6, 8…). Then, we can stop this check when we reach the square root of the number of which we want to determine the primality (here the square root is about 26.363). Historically, the sieve of Eratosthenes (dating from the Greek mathematics) implements this technique in a relatively efficient manner.

More modern techniques include the sieve of Atkin, probabilistic algorithms, and the cyclotomic AKS test.

## Numbers near 695

• Preceding numbers: …693, 694
• Following numbers: 696, 697

### Nearest numbers from 695

• Preceding prime number: 691
• Following prime number: 701
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