7457 is a prime number. And there are other prime numbers quite close to it, specifically 7451 and 7459. So almost all 745X numbers that can be primes are primes. 7453 is ruining the prime train a bit.
7457 is a prime number. And there are other prime numbers quite close to it, specifically 7451 and 7459. So almost all 745X numbers that can be primes are primes. 7453 is ruining the prime train a bit.
The number is 7456.
That's all numbers 4-7.