Q: Is 1,601,901 a Prime Number?
A: No, 1,601,901 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 1601901 can be evenly divided by 1 3 7 9 21 47 63 141 329 423 541 987 1,623 2,961 3,787 4,869 11,361 25,427 34,083 76,281 177,989 228,843 533,967 and 1,601,901, with no remainder.
Since 1,601,901 cannot be divided by just 1 and 1,601,901, it is not a prime number.