Q: Is 1,345,440 a Prime Number?
A: No, 1,345,440 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 1345440 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 2,803 5,606 8,409 11,212 14,015 16,818 22,424 28,030 33,636 42,045 44,848 56,060 67,272 84,090 89,696 112,120 134,544 168,180 224,240 269,088 336,360 448,480 672,720 and 1,345,440, with no remainder.
Since 1,345,440 cannot be divided by just 1 and 1,345,440, it is not a prime number.