Q: Is 1,507,623 a Prime Number?
A: No, 1,507,623 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 1507623 can be evenly divided by 1 3 13 29 31 39 43 87 93 129 377 403 559 899 1,131 1,209 1,247 1,333 1,677 2,697 3,741 3,999 11,687 16,211 17,329 35,061 38,657 48,633 51,987 115,971 502,541 and 1,507,623, with no remainder.
Since 1,507,623 cannot be divided by just 1 and 1,507,623, it is not a prime number.