Q: Is 420,760 a Prime Number?
A: No, 420,760 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 420760 can be evenly divided by 1 2 4 5 8 10 20 40 67 134 157 268 314 335 536 628 670 785 1,256 1,340 1,570 2,680 3,140 6,280 10,519 21,038 42,076 52,595 84,152 105,190 210,380 and 420,760, with no remainder.
Since 420,760 cannot be divided by just 1 and 420,760, it is not a prime number.