Chat with our AI personalities
7*7 = 49 is the square number. Also, 7*7*7*7, and 7*7*7*7*7*7 etc. Any number in the 7 times table, other than 7 itself, cannot be a prime since, by definition, it is divisible by 7. 7 itself, however, is a prime.
3 * 7 * 11 = 231
3, 7 and 11
5 times 7 times 11 equals 385
63.