The product is 651
21 is composite as 3 times 7 is 21 31 is prime
5 times is wrong
37 R 21
One (1.4762) time.
It is: 21+31+21+31 = 104 inches
the mean of 31 42 34 21 33 31 is 192
21 yes, 31 no.
12 times 9 = 108
The Least Common Multiple (LCM) of 21 and 31 is 651.
21.
There is no verse 21 in chapter 31 of 1 Samuel.
The LCM is 1302.