Q: Is 345,216 a Prime Number?
A: No, 345,216 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 345216 can be evenly divided by 1 2 3 4 6 8 12 16 24 29 31 32 48 58 62 64 87 93 96 116 124 128 174 186 192 232 248 348 372 384 464 496 696 744 899 928 992 1,392 1,488 1,798 1,856 1,984 2,697 2,784 2,976 3,596 3,712 3,968 5,394 5,568 5,952 7,192 10,788 11,136 11,904 14,384 21,576 28,768 43,152 57,536 86,304 115,072 172,608 and 345,216, with no remainder.
Since 345,216 cannot be divided by just 1 and 345,216, it is not a prime number.