Q: Is 625,440 a Prime Number?
A: No, 625,440 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 625440 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 1,303 2,606 3,909 5,212 6,515 7,818 10,424 13,030 15,636 19,545 20,848 26,060 31,272 39,090 41,696 52,120 62,544 78,180 104,240 125,088 156,360 208,480 312,720 and 625,440, with no remainder.
Since 625,440 cannot be divided by just 1 and 625,440, it is not a prime number.