31 = 1 + 2 + 3 + 4 + 21
31 and 2
If by "equal up" you mean add up, there are at least two answers: (3, 7, 13, 31) and (5, 7, 11, 31).
They are: 31/1, 31.0, 031 and XXXI
31 and 2
4 / 31 is equal to 0.129032
1 x 124, 2 x 62, 4 x 31
28 + 29 + 31 + 32 2 x 3 x 4 x 5
31 and 5
31
31 x 2 = 62
23, 31