There must be at least fifty of them, altogether, though the number changes.

When the door is next opened this number changes, so it provides tamper evidence for the load.

Economic savings occur from less need to print calendars because only the year number changes.

The least significant bits have the useful property of changing rapidly if the number changes even slightly.

A Mark 5 model exists but it is believed that this is just a number change.

You must tell us if your duty deferment account number changes.

The number change was first seen on state maps in 1978.

It is common for them to grow more, so the number changes often.

"The number changes from day to day," she said, laughing.

The three-digit number changes first, then the letters from right to left.