2.3333
4.4286
9.4286
6
1.75
To find the number that, when multiplied by 18, equals 42, you would divide 42 by 18. This calculation results in 2.3333 repeating. Therefore, 18 times 2.3333 is equal to 42.
2.3333
42.3333
1, 2, 3 and 6
18
7
To work it out for yourself, you need to understand that a prime number is a number than can only be divided by 1 and itself. 18 can be divided by 2 39 can be divided by 3 42 can be divided by 2 which leaves 31 which can only be divided by 1 and 31.
it's the LCM of 18 and 42 18 = 2x32 42 = 2x3x7 LCM = 2x32x7 = 126