- - Sophie Germain Prime
- - Amicable Number with 5564
- - Factorial Prime , Sophie Germain prime
- - 7!, Highly Composite Number
- = 71^2, Centered Octagonal Number
- - Triangular Number , Kaprekar Number , sum of first 100 integers
- - Sophie Germain prime
- - Decagonal Number
- - Sophie Germain prime
- - Safe Prime
- - safe prime
- - Balanced Prime
- - balanced prime
- - triangular number
- - Cuban Prime of the form x = y + 1
- - Sophie Germain prime
- = 72^2
- - φ(5186) = 2592
- - φ(5187) = 2592
- - φ(5189) = 2592, Centered Heptagonal Number
- - Nonagonal Number
- - Sophie Germain prime
- = 22^2 + 23^2 + ... 29^2 = 20^2 + 21^2 + ... 28^2
- - Highly Cototient Number
- - triangular number
- - Sophie Germain prime
- - Kaprekar number
- - Sophie Germain prime, balanced prime
- = 73^2, centered octagonal number
- - Sophie Germain prime
- - Magic Constant of ''n''×''n'' Magic Square and N-Queens Problem for n =22.
- - Octahedral Number
- - triangular number
- - decagonal number
- - safe prime, balanced prime
- - Leyland Number
- - balanced prime
- - Sophie Germain prime, safe prime
- - cuban prime of the form x = y + 1
- - Sophie Germain prime
- - Tetrahedral Number
- - highly cototient number
- - triangular number
- - Super-Poulet Number , centered heptagonal number
- = 74^2
- - safe prime
- - nonagonal number
- - Sophie Germain prime
- - safe prime
- - Square Pyramidal Number
- - Tetranacci Number
- - balanced prime
- - amicable number with 5020
- - triangular number
- - Pentagonal Pyramidal Number
- = 75^2, centered octagonal number
- - Sophie Germain prime, safe prime
- - decagonal number
- - triangular number
- - Sophie Germain prime
- - Zeisel Number
- - Sophie Germain prime, Pell Number , Markov Number , centered heptagonal number
- - Tribonacci Number
- = 76^2
- - smallest counterexample to the conjecture that all odd numbers are of the form
- - triangular number
- - nonagonal number
- - Motzkin Number
- - safe prime, balanced prime
- - Sophie Germain prime
- - safe prime, highly cototient number
- - triangular number
- - Sophie Germain prime
- - sum of the first seven factorials
- - safe prime
- = 77^2, centered octagonal number
- - safe prime
- - decagonal number
- - tetrahedral number
- - Chiliagonal Number
- - triangular number
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