158 (number)

158 (one hundred fifty-eight) is a natural number. It comes after 157 and before 159.

• 158 is an even number (it can be divided by 2).
• Its prime factorization is 2×79.
• Because it has factors other than 1 and itself, 158 is a composite number.
• 158 is the number of digits in the decimal expansion of 100!, the product of all the natural numbers up to and including 100.