Q: Is 18,620 a Prime Number?
A: No, 18,620 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 18620 can be evenly divided by 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 380 490 532 665 931 980 1,330 1,862 2,660 3,724 4,655 9,310 and 18,620, with no remainder.
Since 18,620 cannot be divided by just 1 and 18,620, it is not a prime number.