yes 253 is not a prime number.
the factors of 253 are: 1, 11, 23, and 253 the prime factors of these are: 11 and 23
11 × 23
0.0158
The GCF is 11.
The factors of 253 are: 1, 11, 23, 253
LCM(11, 23) = 253
No. 253 is only divisible by: 1, 11, 23, 253.
253
(1, 253) and (11, 23)
36.1429
21.0833