MIN(b1, b2, ...)
MIN returns the value of the element of the values passed that has the smallest value, with negative numbers considered smaller than positive numbers.
Let us assume that the cells A1, A2, ..., A5 contain numbers 11.4, 17.3, 21.3, 25.9, and 40.1. Then
MIN(A1:A5) equals 11.4.