Q: Is 354,820 a Prime Number?
A: No, 354,820 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 354820 can be evenly divided by 1 2 4 5 10 20 113 157 226 314 452 565 628 785 1,130 1,570 2,260 3,140 17,741 35,482 70,964 88,705 177,410 and 354,820, with no remainder.
Since 354,820 cannot be divided by just 1 and 354,820, it is not a prime number.