In 2002, the International Mathematical Association stipulated that zero is an even number and zero is a special even number, which is not only the dividing line between positive even number and negative even number, but also the watershed between positive odd number and negative odd number.

All integers are either odd or even. If a number is a multiple of 2, it is even.

history

0 is an extremely important number, and the concept of 0 has existed in other regions for a long time. In 3000 BC, the Babylonians knew how to use zero to avoid chaos. In ancient Egypt, as early as 2000 BC, some people used special symbols to record zeros in bookkeeping. Maya civilization first invented the special font 0. In Mayan numerals, 0 is represented by a pictographic symbol like a shell.

The standard number 0 was invented by ancient Indians around the 5th century. They first use black dots to indicate zero, and then gradually become "0". In eastern countries, mathematics is mainly based on operation (in the west, geometry was written at the beginning, "nine numbers of Indians, plus the 0 symbol invented by Arabs, can write all the numbers).