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"emirp" is "prime" spelled backwards. An emirp number is a prime number whose reverse is also a prime. However, palindromic primes are excluded.
So 13 / 31 are emirp numbers.
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What are the first three emirp numbers?
An emirp number is a prime number which, when you reverse the digits, produces a different prime number. Therefore, there are no single-digit emirp numbers. The first three emirp numbers are: 13, 17, 31
IS 103 AN EMIRP?
No, it is not.
Why cant a EMIRP not begin with a 2 4 6 8 5?
yes 11 reverse 11 still
Is 1031 a prime number?
Yes. It is a prime number It is also an emirp (i.e.1301 is prime). And if you want to amaze friends by offering to write out from memory a prime with over a thousand digits, simply write the digit ' 1 ' 1031 times; this is the largest repunit (repeated digit) proven prime.[[User:Colcestrian|Colcestrian]] 02:43, 23 Jun 2009 (UTC)
What are the rules fr multiplication and divisions of integers?
(positive number) x (positive number) = positive number (positive number)/(positive number) = positive number (positive number) x ( negative number) = negative number (positive number)/( negative number) = negative number (negative number) x (negative number) = positive number (negative number)/(negative number) = positive number
What is the formula for the atomic number?
atomic number = number of proton in an element number of proton = number of electron mass number = number of proton + number of neutron therefore... atomic number = mass number - number of neutrons
What does a negative number multiplied by a negative number equal to?
A positive number. Positive Number x Positive Number = Positive Number Positive Number x Negative Number = Negative Number Negative Number x Negative Number = Positive Number
What is 49.9 million?
It is a number. A counting number, an integer, a rational number, a real number, etc.It is a number. A counting number, an integer, a rational number, a real number, etc.It is a number. A counting number, an integer, a rational number, a real number, etc.It is a number. A counting number, an integer, a rational number, a real number, etc.
Can a real number that is not a rational number is a?
A real number which is not a rational number is an irrational number.
What number is equivalent to 30 120 minutes?
There is no number that is equivalent since a number is just that - a number. It is NOT a measure of time.There is no number that is equivalent since a number is just that - a number. It is NOT a measure of time.There is no number that is equivalent since a number is just that - a number. It is NOT a measure of time.There is no number that is equivalent since a number is just that - a number. It is NOT a measure of time.
In order to calculate the number of neutrons you must subtract the from the?
Number of neutrons = Mass number - atomic number
What is up with the chemical elements?
Actinium which is number 89. Aluminum which is number 13. Americium which is number 95. Antimony which is number 51. Argon which is number 18. Arsenic which is number 33. Astatine which is number 85. Barium which is number 56. Berkelium which is number 97. Beryllium which is number 4. Bismuth which is number 83. Bohrium which is number 107. Boron which is number 5. Bromine which is number 35. Cadmium which is number 48. Californium which is number 98. Carbon which is number 6. Cerium which is number 58. Cesium which is number 55. Chlorine which is number 17. Chromium which is number 24. Cobalt which is number 27. Copper which is number 29. Curium which is number 96. Dubnium which is number 105. Dysprosium which is number 66. Einsteinium which is number 99. Erbium which is number 68. Europium which is number 63. Fermium which is number 100. Fluorine which is number 9. Francium which is number 87. And 64 other elements.
