Is 430 a prime number? What are the divisors of 430?

## Parity of 430

430 is an even number, because it is evenly divisible by 2: 430 / 2 = 215.

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## Is 430 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 430 is about 20.736.

Thus, the square root of 430 is not an integer, and therefore 430 is not a square number.

## What is the square number of 430?

The square of a number (here 430) is the result of the product of this number (430) by itself (i.e., 430 × 430); the square of 430 is sometimes called "raising 430 to the power 2", or "430 squared".

The square of 430 is 184 900 because 430 × 430 = 4302 = 184 900.

As a consequence, 430 is the square root of 184 900.

## Number of digits of 430

430 is a number with 3 digits.

## What are the multiples of 430?

The multiples of 430 are all integers evenly divisible by 430, that is all numbers such that the remainder of the division by 430 is zero. There are infinitely many multiples of 430. The smallest multiples of 430 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 430). 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 20.736). 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 430

• Preceding numbers: …428, 429
• Following numbers: 431, 432

### Nearest numbers from 430

• Preceding prime number: 421
• Following prime number: 431
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