Q: Is 1,042,587 a Prime Number?
A: No, 1,042,587 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 1042587 can be evenly divided by 1 3 7 9 13 19 21 39 57 63 67 91 117 133 171 201 247 273 399 469 603 741 819 871 1,197 1,273 1,407 1,729 2,223 2,613 3,819 4,221 5,187 6,097 7,839 8,911 11,457 15,561 16,549 18,291 26,733 49,647 54,873 80,199 115,843 148,941 347,529 and 1,042,587, with no remainder.
Since 1,042,587 cannot be divided by just 1 and 1,042,587, it is not a prime number.