Q: Is 138,528 a Prime Number?
A: No, 138,528 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 138528 can be evenly divided by 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 37 39 48 52 72 74 78 96 104 111 117 144 148 156 208 222 234 288 296 312 333 416 444 468 481 592 624 666 888 936 962 1,184 1,248 1,332 1,443 1,776 1,872 1,924 2,664 2,886 3,552 3,744 3,848 4,329 5,328 5,772 7,696 8,658 10,656 11,544 15,392 17,316 23,088 34,632 46,176 69,264 and 138,528, with no remainder.
Since 138,528 cannot be divided by just 1 and 138,528, it is not a prime number.