# prime

## Primary tabs

Synonym:
prime integer, prime number, rational prime
Type of Math Object:
Definition
Major Section:
Reference
Groups audience:

## Mathematics Subject Classification

11A41 Primes
82-00 General reference works (handbooks, dictionaries, bibliographies, etc.)
83-00 General reference works (handbooks, dictionaries, bibliographies, etc.)
81-00 General reference works (handbooks, dictionaries, bibliographies, etc.)

### Prime numbers in biology, politics

This morning on "This Week with George Stephanopoulos," George Will pondered how abortion laws would be different if the number of months of gestation of a human baby was a prime number. Sam Donaldson laughed, saying he doesn't know what prime numbers are, to which George Will gave the classic definition "a number divisible only by 1 and itself." (Not that I take George's opinion to be the final say on any topic, political or otherwise).

### Re: Prime numbers in biology, politics

Too bad George was wrong, but that doesn't matter. The cool think is the prime number gestation question. I've heard certain insects like cycadas (spelling?) do so in primes. The idea being that perhaps nature selected for these because parasite that attacked them would emerge on a different cycle and so the optimal survial condition is that the two groups emerge at the same time as few times as possible, so a Chineses remainder theorem problem which of course favors survival of groups with gestation lengths whose GCD is small -- thus primes are best.

However, the flaw with humans is that we don't procreate at exactly the same time of year so prime gestation times wouldn't have a survival angle for us.

### Re: Prime numbers in biology, politics

> I've heard
> certain insects like cycadas (spelling?) do so in primes.