18 is the ratio of 18 to 1. It's completely rational.
No, 18 is not a square number
18 is an even number.
The number value is 18.
No 18 is not. It is a abundant number.
No, 18 is not a triangular number.
Peyton Manning is number 18 on the Denver Broncos.
18 is a number.
The number is 18.
the quotient of a number and 18 is 5. find the number.
2 x 3 x 3 = 18
If a number is added to itself, it is twice that number → 18 ÷ 2 = 9 → 9 + 9 = 18
The first prime number after 18 is 19.