Without a sequence given in the question, the next number to 6 is 7.
The next number is 116.
It is: 6*6*6 = 216
The next number in the sequence 3-15-6-30-21 is -207.
1
Without a sequence given in the question, the next number to 6 is 7.
The next composite number after 4 is 6.
The next number is 116.
It is: 6*6*6 = 216
6
6
the next number is 5 and the one after that is 15
Eight would be the next number.
The next number in the sequence 3-15-6-30-21 is -207.
The next number in the sequence is 20. You are alternately multiplying the previous number by two and then subtracting two.
1
The answer is 6! which is 6*5*4*3*2*1 = 720. Think of it as the first number you have 6 choices, the next number you have 5 choices, the next number you have 4 choices and so forth.