Factorization
2978 = 2 × 1489
2978 has 4 divisors: 1, 2, 1489, 2978
Sum of all divisors other than 2978:
1492
Sums & differences
Sum of 2 squares: 2978 = 532 + 132
Goldbach conjecture: 2978 = 2971 + 7 = 2917 + 61 = 2851 + 127 = 2797 + 181 = 2767 + 211 = 2749 + 229 = 2707 + 271 = 2671 + 307 = 2647 + 331 = 2557 + 421 = . . . (only the first 10 pairs are shown)
