Q: Is 1,720,602 a Prime Number?
A: No, 1,720,602 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 1720602 can be evenly divided by 1 2 3 6 9 13 18 19 26 27 38 39 43 54 57 78 81 86 114 117 129 162 171 234 247 258 342 351 387 494 513 559 702 741 774 817 1,026 1,053 1,118 1,161 1,482 1,539 1,634 1,677 2,106 2,223 2,322 2,451 3,078 3,354 3,483 4,446 4,902 5,031 6,669 6,966 7,353 10,062 10,621 13,338 14,706 15,093 20,007 21,242 22,059 30,186 31,863 40,014 44,118 45,279 63,726 66,177 90,558 95,589 132,354 191,178 286,767 573,534 860,301 and 1,720,602, with no remainder.
Since 1,720,602 cannot be divided by just 1 and 1,720,602, it is not a prime number.