FANDOM


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|image = 3,821.JPG
 
|image = 3,821.JPG
 
|imagewidth = 250
 
|imagewidth = 250
|roman-number =
+
|roman-number = MMMDCCCXXII
|ordinal-number =
+
|ordinal-number = three thousand, eight hundred and twenty-one
 
|standard-form = {{PAGENAME}}{{E|3}}
 
|standard-form = {{PAGENAME}}{{E|3}}
|previous =
+
|previous = 3,803
|next =
+
|next = 3,823
|cardinal-number =}}
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|cardinal-number = three thousand, eight hundred and twenty first}}
3,821 is a prime number [[3,001-4,000|between 3,001 and 4,000]]. 3,821 has 2 factors, 1 and 3,821. It is the ??th prime number, and the ??th prime number between 3,001 and 4,000.
+
3,821 is a prime number [[3,001-4,000|between 3,001 and 4,000]]. 3,821 has 2 factors, 1 and 3,821. It is the 530th prime number, and the 100th prime number between 3,001 and 4,000.
 
==Proofs==
 
==Proofs==
 
*{{Divisibility number|Yes|1}}
 
*{{Divisibility number|Yes|1}}
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==Relationship with other odd numbers==
 
==Relationship with other odd numbers==
 
===The numbers before===
 
===The numbers before===
*The previous prime number is
+
*The previous prime number is [[3,803]], 18 numbers away
  +
**3,809 is divisible by [[13]]
  +
**3,811 is [[37]] x [[103]]
  +
**3,817 is divisible by [[11]]
   
 
===The numbers after===
 
===The numbers after===
*The next prime number is
+
*The next prime number is [[3,823]], 2 numbers away
  +
**Therefore, 3,821 and 3,823 are [[Twin Primes]]
   
 
{{Navbox primes 4 digits (2)}}
 
{{Navbox primes 4 digits (2)}}

Revision as of 10:14, January 19, 2018

3,821 is a prime number between 3,001 and 4,000. 3,821 has 2 factors, 1 and 3,821. It is the 530th prime number, and the 100th prime number between 3,001 and 4,000.

Proofs

  • Yes — 3,821 can be divided by 1
  • No — 3,821 cannot be divided by 2-3,820
  • Yes — 3,821 can be divided by 3,821

Relationship with other odd numbers

The numbers before

  • The previous prime number is 3,803, 18 numbers away
    • 3,809 is divisible by 13
    • 3,811 is 37 x 103
    • 3,817 is divisible by 11

The numbers after

  • The next prime number is 3,823, 2 numbers away
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