Using a notion called integer partitions, mathematicians have discovered a new way to detect prime numbers while also ...

But this made me wonder about how many American phone numbers are prime. I suppose I could just do a search through all the 10-digit primes, but it's more fun to think about it a bit more ...

Finally, find the common prime factors. To do this, find out which of the common factors are prime numbers. The common prime factors are 2 and 7, because they only have two factors - themselves and 1.

Once they cataloged polynomials with an odd number of prime factors—the hardest step—Sawin and Shusterman had to determine which of them were prime, and which were twin primes.

In school math class, you probably learned something called prime factorization, where you break a number down into a formula of primes. Let’s say the number is 100: that’s 25 times 4, or 5 ...

The most obvious way to go about identifying any prime number is to try factoring it. First, try dividing by 3, then 5, then 7, etc., and if none of them work, you’ve got a prime.

Unique prime factorization ensures that each number in a number system can be built up from prime numbers in exactly one way. In a number ring that includes a √-5 (in practice, ...

Prime numbers are whole numbers greater than 1 that are not divisible by any whole number other than 1 and itself. The first few are 2, 3, 5, 7, 11, 13 … ...

And associated to the number 55 (5 × 11) would be all multiples of 55 such that the smallest prime factor of the multiplier—the number that multiplies 55—is 11 (therefore excluding all ...