A Fibonacci number
In mathematics, an even number is an integer that is divisible by 2 without leaving a remainder. In the case of 21, when divided by 2, there is a remainder of 1, indicating that it is not evenly divisible by 2. Therefore, 21 is classified as an odd number.
it is 21?
The number with 21 zeros behind it is 10,000,000,000,000,000,000,000, which is also written as 10^21 in scientific notation. This number is obtained by multiplying 10 by itself 21 times. In mathematics, this number is referred to as a "sextillion."
"Sextillion" is a numerical term representing a number equal to a thousand raised to the power of six, which is 1 followed by 21 zeros. It is used to quantify large quantities in mathematics and science.
It is a prime number
Number Theory
the main branches of mathematics are algebra, number theory, geometry and arithmetic.
The number "167" comes from mathematics. It is a natural that precedes 168 and follows 166. It is regarded as a "Chen prime" number in the field of mathematics.
There is no such thing in mathematics as a "neither" number.
7
It is: 7
510