Q: Is 3,345,420 a Prime Number?
A: No, 3,345,420 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 3345420 can be evenly divided by 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 4,289 8,578 12,867 17,156 21,445 25,734 42,890 51,468 55,757 64,335 85,780 111,514 128,670 167,271 223,028 257,340 278,785 334,542 557,570 669,084 836,355 1,115,140 1,672,710 and 3,345,420, with no remainder.
Since 3,345,420 cannot be divided by just 1 and 3,345,420, it is not a prime number.