If I understand the question correctly, the answer is 109.
218 is the mass number of the isotope polonium-218.
27 is an odd number.
An odd number minus an odd number is an even number.
218 = two hundred eighteen.
when an odd number is subtracted from an odd number the answer is an even number.
All Factors of 218:1, 2, 109, 218
These are the products of the given odd number and any odd number.
The number 218 is spelled "two hundred eighteen."