Q: Is 1,742,540 a Prime Number?
A: No, 1,742,540 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 1742540 can be evenly divided by 1 2 4 5 10 20 151 302 577 604 755 1,154 1,510 2,308 2,885 3,020 5,770 11,540 87,127 174,254 348,508 435,635 871,270 and 1,742,540, with no remainder.
Since 1,742,540 cannot be divided by just 1 and 1,742,540, it is not a prime number.