Wednesday, September 24, 2008

157

157 is a prime number.

157
is the smallest prime number of the form 2p + p3, where p is prime.

157 is the smallest three-digit prime that produces five other primes by changing only its first digit: 257, 457, 557, 757, and 857.

1572 and (157 + 1)2 use the same digits: 24649 and 24964.


The most common type of
Escherichia coli infection that causes illness in people is E. coli 0157.


Source:
Prime Curios!
Image: CDC/Peggy S. Hayes
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