100 monkeys

1 group 3

33 groups of residues 1

Each monkey in the first group got 0 peanuts.

In the second group, each monkey got 1 peanut.

In the third group, each monkey gets 2 peanuts.

In the fourth group, each monkey gets three peanuts.

.

In the 33rd group, each monkey got 32 peanuts.

At this time, there are 1 monkey and 16 peanuts left.

So no matter how you divide it, at least four monkeys get as many peanuts.

this is a