157
157 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.
157 is a prime number. Like all primes (except two), it is an odd number.
Prime factorization of 157:
157^{}
See below for interesting mathematical facts about the number 157 from the Numbermatics database.
Names of 157
 Cardinal: 157 can be written as One hundred fiftyseven.
Scientific notation
 Scientific notation: 1.57 × 10^{2}
Factors of 157
Divisors of 157
Bases of 157
 Binary: 10011101_{2}
 Hexadecimal: 0x9D
 Base36: 4D
Squares and roots of 157
Scales and comparisons
How big is 157? 157 seconds is equal to 2 minutes, 37 seconds.

To count from 1 to 157 would take you about eighteen seconds.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomlychosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
 A cube with a volume of 157 cubic inches would be around 0.4 feet tall.
Recreational maths with 157
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The information we have on file for 157 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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