40 (number)

Forty – 40

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Order	fortieth
Numbers: 0 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900

40 (also written as forty or four ten) is the number that is after thirty-nine and before forty-one.

The prime factors of forty are 2 and 5. (2 * 2 * 2 * 5 = 40)

Forty is also the only number in the English language which is spelt in alphabetical order.

The Bible

In the Judeo-Christian Bible, the number forty has special meaning. The Jews wandered in a desert for forty years, there was a forty-day and forty-night rainstorm, and other instances.