109

109
Basic Information
Cardinal Number	one hundred and nine
Ordinal Number	one hundred and ninth
Roman Numeral	CIX
Greek Numeral	ΡΘ´
Factorization	109
Standard Form	1.09 × 102
Different Representations
Binary Form	11011012
Ternary Form	110013
Quaternary Form	12314
Quinary Form	4145
Senary Form	3016
Septenary Form	2147
Octal Form	1558
Nonary Form	1319
Undecimal Form	9A11
Duodecimal Form	9112
Tridecimal Form	8513
Quattuordecimal Form	7B14
Quindecimal Form	7415
Hexadecimal Form	6D16
Septendecimal Form	6717
Octodecimal Form	6118
Novemdecimal Form	5E19
Vigesimal Form	5920
Unvigesimal Form	5421
Duovigesimal Form	4L22
Trevigesimal Form	4H23
Quattuorvigesimal Form	4D24
Quinvigesimal Form	4925
Hexavigesimal Form	4526
Septenvigesimal Form	4127
Octovigesimal Form	3P28
Novemvigesimal Form	3M29
Trigesimal Form	3J30
Untrigesimal Form	3G31
Duotrigesimal Form	3D32
Tretrigesimal Form	3A33
Quattuortrigesimal Form	3734
Quintrigesimal Form	3435
Hexatrigesimal Form	3136
Previous	107
Current	109
Next	113

109 is a prime number from 101-200. 109 has 2 factors, 1 and 109. It is the 29th prime number, and the fourth prime number from 101-200.

Proofs

• — 109 can be divided by 1.

• — 109 cannot be divided by 2-108.

• — 109 can be divided by 109.

As an Exponent of Mersenne Number

2¹⁰⁹ - 1 is divisible by 745,988,807, and is therefore not a prime number.

Relationship with other odd numbers

The numbers before

• The previous prime number is 107.
  • There are no odd numbers between 107 and 109. As a result, they are twin primes.
• The previous prime number before 107 is 103.
  • 103 and 109 are six numbers apart; therefore, they are sexy primes.

The numbers after

• The next prime number is 113.
  • 109 and 113 are four numbers apart; therefore, they are cousin primes.
• 127 is the next prime number after 113. It is a huge gap, the largest between 101-200.

Prime Numbers 1-1,000