Numbers are significant in Norse mythology although not to the extent which they are in some traditions e.g. as in Jewish cabbalism.

Particularly significant numbers are three, eight and nine.

Three

The number three is both an invocatory and magic number:

The number three occurs with great frequency in grouping individuals and artefacts:

Eight

The number eight is highly potent and arguably the most magically potent of the numbers.

Nine

The number nine is a magically significant number: