Q: Is 526,428 a Prime Number?
A: No, 526,428 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 526428 can be evenly divided by 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 2,089 4,178 6,267 8,356 12,534 14,623 18,801 25,068 29,246 37,602 43,869 58,492 75,204 87,738 131,607 175,476 263,214 and 526,428, with no remainder.
Since 526,428 cannot be divided by just 1 and 526,428, it is not a prime number.