The Number

161

One Hundred and Sixty-One

Nearby Numbers

Positive, nonzero integers within three units

158
One Hundred and Fifty-Eight
159
One Hundred and Fifty-Nine
160
One Hundred and Sixty
162
One Hundred and Sixty-Two
163
One Hundred and Sixty-Three
164
One Hundred and Sixty-Four

Scientific Notation

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

1.61e2

Reciprocal

A number multiplied with its reciprocal is one.

0.006211180124223602

The reciprocal of 161.

Palindrome?

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

The number 161 is a palindrome.

Not A Prime Number

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

One hundred and sixty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

One hundred and sixty-one is a composite number with 4 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 one hundred and sixty-one has the following 2 prime factors:

7
Seven
23
Twenty-Three

Prime Factorization

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

71 · 231 = 161

Base Conversions

The number one hundred and sixty-one in 35 different bases