Whats the smallest market trades brokers allow, i know limit orders are usually set at 10$-20$ worth of crypto but if its market i know some allow less but what is this number and is each broker/exchange much different in regards to this?..

article on minimums at binance..

https://coinpixie.com/how-to-trade-less-than-the-minimum-on-binance/

any feedback would be much appreciated!