Q: Is 421,008 a Prime Number?
A: No, 421,008 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 421008 can be evenly divided by 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 179 196 294 336 358 392 537 588 716 784 1,074 1,176 1,253 1,432 2,148 2,352 2,506 2,864 3,759 4,296 5,012 7,518 8,592 8,771 10,024 15,036 17,542 20,048 26,313 30,072 35,084 52,626 60,144 70,168 105,252 140,336 210,504 and 421,008, with no remainder.
Since 421,008 cannot be divided by just 1 and 421,008, it is not a prime number.