Q: Is 1,421,670 a Prime Number?
A: No, 1,421,670 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 1421670 can be evenly divided by 1 2 3 5 6 10 15 30 47,389 94,778 142,167 236,945 284,334 473,890 710,835 and 1,421,670, with no remainder.
Since 1,421,670 cannot be divided by just 1 and 1,421,670, it is not a prime number.