Q: Is 20,700 a Prime Number?
A: No, 20,700 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 20700 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 23 25 30 36 45 46 50 60 69 75 90 92 100 115 138 150 180 207 225 230 276 300 345 414 450 460 575 690 828 900 1,035 1,150 1,380 1,725 2,070 2,300 3,450 4,140 5,175 6,900 10,350 and 20,700, with no remainder.
Since 20,700 cannot be divided by just 1 and 20,700, it is not a prime number.