2×31

2×31 is the product of the integers 2 and 31, which equals 62. In mathematics, it is a simple example of multiplying two primes, since 2 and 31 are both prime.

The number 62 is even and composite, with divisors 1, 2, 31, and 62. Its prime factorization is 2 × 31. As a semiprime, it has exactly four positive divisors.

In different numeral systems, 62 appears as decimal 62, binary 111110, octal 76, and hexadecimal 3E. In Roman numerals it is LXII. The expression 2×31 can thus be represented across common bases with these equivalents.

Contextual notes include its relation to nearby powers of two: 62 is 2 less than 64, a power of two. It is also 1 less than 63, which factors as 3 × 3 × 7.

In science, 62 is the atomic number of samarium, a lanthanide element used in magnets and various specialized applications. This links the numeric value to a tangible item in the periodic table, illustrating how numbers can appear in both pure and applied contexts.

The notation 2×31 can also describe a two-by-thirty-one rectangle or matrix dimension in geometry and computing, indicating how the same expression serves both arithmetic and structural purposes in different fields.