Q: Is 7,740,420 a Prime Number?
A: No, 7,740,420 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 7740420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 71 79 92 115 138 142 158 213 230 237 276 284 316 345 355 395 426 460 474 690 710 790 852 948 1,065 1,185 1,380 1,420 1,580 1,633 1,817 2,130 2,370 3,266 3,634 4,260 4,740 4,899 5,451 5,609 6,532 7,268 8,165 9,085 9,798 10,902 11,218 16,330 16,827 18,170 19,596 21,804 22,436 24,495 27,255 28,045 32,660 33,654 36,340 48,990 54,510 56,090 67,308 84,135 97,980 109,020 112,180 129,007 168,270 258,014 336,540 387,021 516,028 645,035 774,042 1,290,070 1,548,084 1,935,105 2,580,140 3,870,210 and 7,740,420, with no remainder.
Since 7,740,420 cannot be divided by just 1 and 7,740,420, it is not a prime number.