The Number
15
Fifteen
In Base 5 Quinary Is
305
The numbers with a 5 subscript use Base 5 Quinary notation.
For more familiar numbers: See Fifteen in Base 10 Decimal
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.
1.5e1
Reciprocal
A number multiplied with its reciprocal is one.
0.0131313131313131313131315
The reciprocal of 15 in Base 5 Quinary.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 305 is not a palindrome.
Not A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
Fifteen is a composite number with 4 total factors (including 1 and itself). See primes in Base 5 Quinary
A Composite
Composites have more than just these two factors.
Fifteen is a composite number with 4 total factors (including 1 and itself).
Prime Factors
The number fifteen has the following 2 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
351
·
1051
= 305
Base Conversions
The number fifteen in 35 different bases