Q: Is 420,876 a Prime Number?
A: No, 420,876 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 420876 can be evenly divided by 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 433 486 866 972 1,299 1,732 2,598 3,897 5,196 7,794 11,691 15,588 23,382 35,073 46,764 70,146 105,219 140,292 210,438 and 420,876, with no remainder.
Since 420,876 cannot be divided by just 1 and 420,876, it is not a prime number.