Q: Is 343,420 a Prime Number?
A: No, 343,420 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 343420 can be evenly divided by 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 223 308 385 446 770 892 1,115 1,540 1,561 2,230 2,453 3,122 4,460 4,906 6,244 7,805 9,812 12,265 15,610 17,171 24,530 31,220 34,342 49,060 68,684 85,855 171,710 and 343,420, with no remainder.
Since 343,420 cannot be divided by just 1 and 343,420, it is not a prime number.