The Number
42
Forty-Two
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
4.2e1
Reciprocal
A number multiplied with its reciprocal is one.
0.023809523809523808
The reciprocal of 42.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 42 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Forty-two is a composite number with 8 total factors (including 1 and itself). See primes in Base 10 Decimal
A Composite
Composites have more than just these two factors.
Forty-two is a composite number with 8 total factors (including 1 and itself).
Prime Factors
The number forty-two has the following 3 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
21
·
31
·
71
= 42
Base Conversions
The number forty-two in 35 different bases