It is 398.
199 is.
199
199 is.
There are 199 multiples of five that fall between 1,001 and 1,999.
76416, 152832, 229248 and so on.
199 is prime.
A nanometer is a small length, and one nm would be the smallest integer length. But picometers and smaller sub-multiples. (femto-, atto-, etc) are even smaller in length.
LCM
18,36,54,72,90
There are no multiples of 44 between 1 and 10. The smallest one is 44.
Those are known as "common multiples". The smallest POSITIVE of these common multiples is called the "least common multiple".
Yes, All multiples of an even number are themselves even. 4 is an even number, so its multiples are all even.