1. Numbers
  2. Compare 71 vs 80

Compare 71 vs 80

Property7180
Typeprimecomposite number
Unique factors12
Total factors15
Prime factorization71124 × 51
Prime factorization712 × 2 × 2 × 2 × 5
Divisors count210
Divisors1, 711, 2, 4, 5, 8, 10, 16, 20, 40, 80
Number of properties130
Centered heptagonal primes2nd 
Chen primes18th 
Class 1+ primes11th 
Cousin primes (2nd member)7th 
Emirps5th 
Good primes10th 
Multiplicative primes8th 
Pierpont primes of the 2nd kind11th 
Primes20th 
Prime triplets (2nd member)8th 
Right-truncatable primes11th 
Solinas primes17th 
Twin primes (1st member)8th 
Roman numberalsLXXILXXX
Base 21000111210100002
Base 32122322223
Base 41013411004
Base 524153105
Base 615562126
Base 713171437
Base 810781208
Base 9789889
Base 1071108010
Base 1165117311
Base 125b126812
Base 1356136213
Base 1451145a14
Base 154b155515
Base 1647165016
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