What is the maximum value an uint and felt can store in Cairo Language?

Hi,

I'm not sure to what uint is referring to. If you're referring to uint256, the "base" type of Solidity, then no, felt and uint256 are not equivalent.

A felt corresponds to the size of the field on StarkNet, which is 2^251 + 17 * 2^192 + 1. You need to subtract 1 to this number to get biggest number that fits in a felt (since you need to account for the 0 number).

A uint256 is 256 bits, i.e the biggest number that will fit in it will be 2^256 - 1 (again, subtracting 1 because of 0).

So to answer:

• `felt_max = 2^251 + 17 ^ 192 + 1 - 1
• `uint256_max = 2^256 - 1

2. No they are not the same, uint256_max > felt_max