The Number

72

Seventy-Two

Nearby Numbers

Positive, nonzero integers within three units

69
Sixty-Nine
70
Seventy
71
Seventy-One
73
Seventy-Three
74
Seventy-Four
75
Seventy-Five

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

7.2e1

Reciprocal

A number multiplied with its reciprocal is one.

0.013888888888888888

The reciprocal of 72.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 72 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Seventy-two is a composite number with 12 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Seventy-two is a composite number with 12 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number seventy-two has the following 2 prime factors:

2
Two
3
Three

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

23 · 32 = 72

Base Conversions

The number seventy-two in 35 different bases