7, 14, 21, 28, 35, 42, 49, 56, 63, 70
replace 7 with x: x+2x=3x x+2x+3x=6x all ten of them -> 55x Put the 7 back in: 55(7)=385 OR: The first ten multiples of 7 are 7,14,21,28,35,42,49,56,63,70 The product of the multiples will then be 7+14+21+28+35+42+49+56+63+70= 385 :)
7 is a prime number. The answer is 1.
first ten multiples of 11
The first ten multiples of 24 are:24487296120144168192216240
The first ten multiples are 22,44,66,88,110,132,154,176,198, and 220
I cannot see any numbers in the list that are not multiples of ten.
7 14 21 28 35 42 49 56 63 70
well five times two is ten so double five and you have the same multiples
7, 14, 21, 28, 35, 42, 49, 56, 63, 70
7, 42, 63, 98, 105
7, 14, 21, 28, 35, 42, 49, 56, 63, 70.
10000, 20000, 30000, 40000, 50000, 60000, 70000.