It is 19.
190
187 is already an integer because it is a whole number
187 to the nearest 100 = 200
rational because it is a whole number
190.
190
187 is a composite number. A prime number has exactly 2 factors, 1 and the number itself. 187 has 4 factors, 1, 11, 17, and 187, so 187 is a composite.
Answer: 187 rounded to the nearest ten is 190.
The greatest factor of any number is the number itself.
190
187 is a composite number
Tungsten-187 has 113 neutrons. Work this out by subtracting the atomic number of 74 (which is the number of protons) from the mass number 187.