Q: Is 1,724,840 a Prime Number?
A: No, 1,724,840 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 1724840 can be evenly divided by 1 2 4 5 8 10 13 20 26 31 40 52 62 65 104 107 124 130 155 214 248 260 310 403 428 520 535 620 806 856 1,070 1,240 1,391 1,612 2,015 2,140 2,782 3,224 3,317 4,030 4,280 5,564 6,634 6,955 8,060 11,128 13,268 13,910 16,120 16,585 26,536 27,820 33,170 43,121 55,640 66,340 86,242 132,680 172,484 215,605 344,968 431,210 862,420 and 1,724,840, with no remainder.
Since 1,724,840 cannot be divided by just 1 and 1,724,840, it is not a prime number.