Q: Is 491,920 a Prime Number?
A: No, 491,920 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 491920 can be evenly divided by 1 2 4 5 8 10 11 13 16 20 22 26 40 43 44 52 55 65 80 86 88 104 110 130 143 172 176 208 215 220 260 286 344 430 440 473 520 559 572 688 715 860 880 946 1,040 1,118 1,144 1,430 1,720 1,892 2,236 2,288 2,365 2,795 2,860 3,440 3,784 4,472 4,730 5,590 5,720 6,149 7,568 8,944 9,460 11,180 11,440 12,298 18,920 22,360 24,596 30,745 37,840 44,720 49,192 61,490 98,384 122,980 245,960 and 491,920, with no remainder.
Since 491,920 cannot be divided by just 1 and 491,920, it is not a prime number.