i know this sounds like a really stupid answer, but have you tried turning the ring over, and reading it "upside down" because that could in fact be the right way up.... i thought my ring said "526" and then i turned it upside down and realised that it was in fact 925..... look at the 2 in the middle and try and see what way up it is meant to go.... that's the best answer i can give, hope that helps in some way Answer 2:
Normally those numbers (on any jewelry) are the quality and or quantity of precious metals involved.
The number "526" on your ring likely indicates the ring's metal purity or a specific design or model number. In jewelry, numbers often represent the karat weight of gold (e.g., 14K gold is often stamped with "585" for 58.5% gold content), but "526" doesn't correspond to a standard purity mark. It could also signify a manufacturer's code or a specific collection. To get precise information, consider consulting a jeweler or the brand that produced the ring.
34% of 526= 34% * 526= 0.34 * 526= 178.84
5% of 526= 5% * 526= 0.05 * 526= 26.3
The factors of 526 are: 1, 2, 263, 526.
526 = 1 x 526, 2 x 263.
526 = 5.26x10²
526 = DXXVI
the half of 526 is 263.
1, 2, 263, 526
526 * 22 = 11,572
1226
526 = 5.26 × 102